diff --git a/front_end/messages/cs.json b/front_end/messages/cs.json
index 5a1171d0b2..4abf0029b9 100644
--- a/front_end/messages/cs.json
+++ b/front_end/messages/cs.json
@@ -1220,7 +1220,7 @@
   "communityDisclaimer": "Přispěl <community></community> komunita. <learnMore>Dozvědět se více</learnMore>",
   "communityDisclaimerSiteMain": "Tato otázka je také součástí hlavního Metaculus.",
   "conditionalBranchResolutionAnnulled": "Tato větev byla zrušena, protože <link>nadřazená otázka</link> byla vyřešena <resolution></resolution>.",
-  "postNotebookMoveDateModalCopy": "Datum ukončení předpovědí turnaje je <b>{tournament_forecasting_end_date}</b> a snažíte se schválit otázku, která se uzavírá <b>{question_close_date}</b>. Chcete přemístit datum ukončení předpovědí turnaje na <b>{question_close_date}</b>?",
+  "postNotebookMoveDateModalCopy": "Datum ukončení předpovědí turnaje je <b>{tournament_close_date}</b> a snažíte se schválit otázku, která se uzavírá <b>{question_close_date}</b>. Chcete přemístit datum ukončení předpovědí turnaje na <b>{question_close_date}</b>?",
   "moveDate": "Přemístit datum",
   "addKeyFactor": "Přidat klíčový faktor",
   "addKeyFactors": "Přidat klíčové faktory",
diff --git a/front_end/messages/en.json b/front_end/messages/en.json
index 392a5a4764..296a7ce452 100644
--- a/front_end/messages/en.json
+++ b/front_end/messages/en.json
@@ -1463,7 +1463,7 @@
   "communityDisclaimer": "Contributed by the <community></community> community. <learnMore>Learn more</learnMore>",
   "conditionalBranchResolutionAnnulled": "This branch was annulled because the <link>parent question</link> resolved <resolution></resolution>.",
   "communityDisclaimerSiteMain": "This question is also part of main Metaculus.",
-  "postNotebookMoveDateModalCopy": "The tournament forecasting end date is <b>{tournament_forecasting_end_date}</b> and you are trying to approve a question that closes on <b>{question_close_date}</b>. Do you want to move the tournament forecasting end date to <b>{question_close_date}</b>?",
+  "postNotebookMoveDateModalCopy": "The tournament close date is <b>{tournament_close_date}</b> and you are trying to approve a question that closes on <b>{question_close_date}</b>. Do you want to move the tournament close date to <b>{question_close_date}</b>?",
   "moveDate": "Move date",
   "addKeyFactor": "Add key factor",
   "addDriver": "Add Driver",
diff --git a/front_end/messages/es.json b/front_end/messages/es.json
index ac46d8796e..71326d0fc1 100644
--- a/front_end/messages/es.json
+++ b/front_end/messages/es.json
@@ -1219,7 +1219,7 @@
   "communityDisclaimer": "Contribuido por la comunidad de <community></community>. <learnMore>Más información</learnMore>",
   "communityDisclaimerSiteMain": "Esta pregunta también forma parte de Metaculus principal.",
   "conditionalBranchResolutionAnnulled": "Esta rama fue anulada porque la <link>pregunta principal</link> se resolvió <resolution></resolution>.",
-  "postNotebookMoveDateModalCopy": "La fecha de finalización de pronósticos del torneo es <b>{tournament_forecasting_end_date}</b> y estás tratando de aprobar una pregunta que cierra el <b>{question_close_date}</b>. ¿Quieres mover la fecha de finalización de pronósticos del torneo al <b>{question_close_date}</b>?",
+  "postNotebookMoveDateModalCopy": "La fecha de finalización de pronósticos del torneo es <b>{tournament_close_date}</b> y estás tratando de aprobar una pregunta que cierra el <b>{question_close_date}</b>. ¿Quieres mover la fecha de finalización de pronósticos del torneo al <b>{question_close_date}</b>?",
   "moveDate": "Mover fecha",
   "addKeyFactor": "Añadir factor clave",
   "addKeyFactors": "Añadir factores clave",
diff --git a/front_end/messages/pt.json b/front_end/messages/pt.json
index 8895cd7cc4..3b5ae71f04 100644
--- a/front_end/messages/pt.json
+++ b/front_end/messages/pt.json
@@ -1217,7 +1217,7 @@
   "communityDisclaimer": "Contribuído pela comunidade <community></community>. <learnMore>Saiba mais</learnMore>",
   "communityDisclaimerSiteMain": "Esta pergunta também faz parte do Metaculus principal.",
   "conditionalBranchResolutionAnnulled": "Este ramo foi anulado porque a <link>pergunta pai</link> foi resolvida <resolution></resolution>.",
-  "postNotebookMoveDateModalCopy": "A data de término das previsões do torneio é <b>{tournament_forecasting_end_date}</b> e você está tentando aprovar uma pergunta que fecha em <b>{question_close_date}</b>. Deseja mover a data de término das previsões do torneio para <b>{question_close_date}</b>?",
+  "postNotebookMoveDateModalCopy": "A data de término das previsões do torneio é <b>{tournament_close_date}</b> e você está tentando aprovar uma pergunta que fecha em <b>{question_close_date}</b>. Deseja mover a data de término das previsões do torneio para <b>{question_close_date}</b>?",
   "moveDate": "Mover data",
   "addKeyFactor": "Adicionar fator chave",
   "addKeyFactors": "Adicionar Fatores Chave",
diff --git a/front_end/messages/zh-TW.json b/front_end/messages/zh-TW.json
index 31dc25025c..95aa557da0 100644
--- a/front_end/messages/zh-TW.json
+++ b/front_end/messages/zh-TW.json
@@ -1185,7 +1185,7 @@
   "communityDisclaimer": "由<community></community>社群提供。<learnMore>了解更多</learnMore>",
   "conditionalBranchResolutionAnnulled": "此分支已取消，因為<link>父問題</link>解決了<resolution></resolution>。",
   "communityDisclaimerSiteMain": "這個問題也是 Metaculus 主站的一部分。",
-  "postNotebookMoveDateModalCopy": "比賽預測的結束日期是<b>{tournament_forecasting_end_date}</b>，而你正嘗試批准一個截止日期為<b>{question_close_date}</b>的問題。你想將比賽預測的結束日期移動到<b>{question_close_date}</b>嗎？",
+  "postNotebookMoveDateModalCopy": "比賽預測的結束日期是<b>{tournament_close_date}</b>，而你正嘗試批准一個截止日期為<b>{question_close_date}</b>的問題。你想將比賽預測的結束日期移動到<b>{question_close_date}</b>嗎？",
   "moveDate": "移動日期",
   "addKeyFactor": "加入關鍵因素",
   "addKeyFactors": "加入關鍵因素",
diff --git a/front_end/messages/zh.json b/front_end/messages/zh.json
index a4586eedec..cffcc34901 100644
--- a/front_end/messages/zh.json
+++ b/front_end/messages/zh.json
@@ -1221,7 +1221,7 @@
   "communityDisclaimer": "由<community></community>社区贡献。<learnMore>了解更多</learnMore>",
   "communityDisclaimerSiteMain": "这个问题也是 Metaculus 主站的一部分。",
   "conditionalBranchResolutionAnnulled": "此分支被取消，因为<link>父问题</link>解决<resolution></resolution>。",
-  "postNotebookMoveDateModalCopy": "比赛预测结束日期为 <b>{tournament_forecasting_end_date}</b>，而您正在尝试批准一个关闭日期为 <b>{question_close_date}</b> 的问题。您是否想将比赛预测结束日期移至 <b>{question_close_date}</b>？",
+  "postNotebookMoveDateModalCopy": "比赛预测结束日期为 <b>{tournament_close_date}</b>，而您正在尝试批准一个关闭日期为 <b>{question_close_date}</b> 的问题。您是否想将比赛预测结束日期移至 <b>{question_close_date}</b>？",
   "moveDate": "移动日期",
   "addKeyFactor": "添加关键因素",
   "addKeyFactors": "添加关键因素",
diff --git a/front_end/src/app/(main)/(tournaments)/tournament/components/closed_tournament_timeline.tsx b/front_end/src/app/(main)/(tournaments)/tournament/components/closed_tournament_timeline.tsx
index 699a4daa58..78c52136de 100644
--- a/front_end/src/app/(main)/(tournaments)/tournament/components/closed_tournament_timeline.tsx
+++ b/front_end/src/app/(main)/(tournaments)/tournament/components/closed_tournament_timeline.tsx
@@ -30,8 +30,8 @@ const ClosedTournamentTimeline: FC<Props> = async ({
     latestScheduledResolutionTimestamp = addDays(dateNowTimestamp, 1).getTime();
   }
 
-  const endDateTimestamp = tournament.close_date
-    ? new Date(tournament.close_date).getTime()
+  const endDateTimestamp = tournament.winners_announced_date
+    ? new Date(tournament.winners_announced_date).getTime()
     : addWeeks(
         isAllQuestionsResolved
           ? latestActualResolutionTimestamp
diff --git a/front_end/src/app/(main)/(tournaments)/tournament/components/dropdown_menu.tsx b/front_end/src/app/(main)/(tournaments)/tournament/components/dropdown_menu.tsx
index 76c66b1600..6ca96f52a9 100644
--- a/front_end/src/app/(main)/(tournaments)/tournament/components/dropdown_menu.tsx
+++ b/front_end/src/app/(main)/(tournaments)/tournament/components/dropdown_menu.tsx
@@ -99,8 +99,8 @@ const TournamentStats = ({ tournament }: { tournament: Tournament }) => {
   const isUpcoming =
     new Date(tournament.start_date || "").getTime() > Date.now();
   const forecastingClosed =
-    tournament.forecasting_end_date &&
-    new Date(tournament.forecasting_end_date).getTime() < Date.now();
+    tournament.close_date &&
+    new Date(tournament.close_date).getTime() < Date.now();
   const questionsResolved = !!tournament.timeline.latest_actual_resolve_time;
   return (
     <div className="flex flex-col items-start gap-4 self-stretch @container">
@@ -114,7 +114,7 @@ const TournamentStats = ({ tournament }: { tournament: Tournament }) => {
           </span>
         </div>
 
-        {tournament.forecasting_end_date && (
+        {tournament.close_date && (
           <div className="flex justify-between gap-4 @lg:flex-col @lg:justify-start @lg:gap-1">
             <span className="text-xs font-medium uppercase text-gray-700 dark:text-gray-700-dark">
               {forecastingClosed
@@ -123,7 +123,7 @@ const TournamentStats = ({ tournament }: { tournament: Tournament }) => {
               :
             </span>
             <span className="text-right text-sm font-medium leading-4 text-gray-900 dark:text-gray-900-dark">
-              <LocalDaytime date={tournament.forecasting_end_date} />
+              <LocalDaytime date={tournament.close_date} />
             </span>
           </div>
         )}
@@ -142,13 +142,13 @@ const TournamentStats = ({ tournament }: { tournament: Tournament }) => {
             </span>
           </div>
         )}
-        {tournament.close_date && (
+        {tournament.winners_announced_date && (
           <div className="flex justify-between gap-4 @lg:flex-col @lg:justify-start @lg:gap-1">
             <span className="text-xs font-medium uppercase text-gray-700 dark:text-gray-700-dark">
               {t("winnersAnnounced")}:
             </span>
             <span className="text-right text-sm font-medium leading-4 text-gray-900 dark:text-gray-900-dark">
-              <LocalDaytime date={tournament.close_date} />
+              <LocalDaytime date={tournament.winners_announced_date} />
             </span>
           </div>
         )}
diff --git a/front_end/src/app/(main)/(tournaments)/tournament/components/header_block_info.tsx b/front_end/src/app/(main)/(tournaments)/tournament/components/header_block_info.tsx
index d3fbe561ec..45c84435fa 100644
--- a/front_end/src/app/(main)/(tournaments)/tournament/components/header_block_info.tsx
+++ b/front_end/src/app/(main)/(tournaments)/tournament/components/header_block_info.tsx
@@ -46,10 +46,10 @@ const HeaderBlockInfo: FC<Props> = async ({ tournament }) => {
               text={formatDate(locale, new Date(tournament.start_date))}
             />
           )}
-          {!isNil(tournament.close_date) && (
+          {!isNil(tournament.winners_announced_date) && (
             <TournamentStat
               title={t("EndDate")}
-              text={formatDate(locale, new Date(tournament.close_date))}
+              text={formatDate(locale, new Date(tournament.winners_announced_date))}
             />
           )}
         </div>
diff --git a/front_end/src/app/(main)/(tournaments)/tournament/components/tournament_timeline.tsx b/front_end/src/app/(main)/(tournaments)/tournament/components/tournament_timeline.tsx
index 322cbd4837..541382096a 100644
--- a/front_end/src/app/(main)/(tournaments)/tournament/components/tournament_timeline.tsx
+++ b/front_end/src/app/(main)/(tournaments)/tournament/components/tournament_timeline.tsx
@@ -42,7 +42,7 @@ const TournamentTimeline: FC<Props> = async ({ tournament }) => {
   } = tournament.timeline;
 
   const latestScheduledCloseTimestamp = getTimestampFromDateString(
-    tournament.forecasting_end_date || tournament.close_date
+    tournament.close_date || tournament.winners_announced_date
   );
 
   const nowTs = Date.now();
diff --git a/front_end/src/app/(main)/(tournaments)/tournaments/components/tournaments_filter.tsx b/front_end/src/app/(main)/(tournaments)/tournaments/components/tournaments_filter.tsx
index 17e44298ad..333e11f780 100644
--- a/front_end/src/app/(main)/(tournaments)/tournaments/components/tournaments_filter.tsx
+++ b/front_end/src/app/(main)/(tournaments)/tournaments/components/tournaments_filter.tsx
@@ -26,7 +26,7 @@ const TournamentsFilter: React.FC = () => {
     },
     {
       label: t("endingSoon"),
-      value: TournamentsSortBy.CloseDateAsc,
+      value: TournamentsSortBy.WinnersAnnouncedDateAsc,
     },
     {
       label: t("newest"),
diff --git a/front_end/src/app/(main)/(tournaments)/tournaments/components/tournaments_grid/live_tournament_card.tsx b/front_end/src/app/(main)/(tournaments)/tournaments/components/tournaments_grid/live_tournament_card.tsx
index 1fe2e753f2..67df5e2763 100644
--- a/front_end/src/app/(main)/(tournaments)/tournaments/components/tournaments_grid/live_tournament_card.tsx
+++ b/front_end/src/app/(main)/(tournaments)/tournaments/components/tournaments_grid/live_tournament_card.tsx
@@ -89,8 +89,8 @@ const LiveTournamentCard: React.FC<Props> = ({
             nowTs={nowTs}
             timeline={item.timeline ?? null}
             startDate={item.start_date ?? null}
-            forecastingEndDate={item.forecasting_end_date ?? null}
             closeDate={item.close_date ?? null}
+            winnersAnnouncedDate={item.winners_announced_date ?? null}
             isOngoing={Boolean(item.is_ongoing)}
           />
         )}
@@ -103,19 +103,19 @@ function TournamentTimelineBar({
   nowTs,
   timeline,
   startDate,
-  forecastingEndDate,
   closeDate,
+  winnersAnnouncedDate,
   isOngoing,
 }: {
   nowTs: number | null;
   timeline: TournamentTimeline | null;
   startDate?: string | null;
-  forecastingEndDate?: string | null;
   closeDate?: string | null;
+  winnersAnnouncedDate?: string | null;
   isOngoing: boolean;
 }) {
   const startTs = safeTs(startDate);
-  const closedTs = safeTs(forecastingEndDate ?? closeDate ?? null);
+  const closedTs = safeTs(closeDate ?? winnersAnnouncedDate ?? null);
   if (!startTs || !closedTs) return null;
 
   const now = nowTs ?? Date.now();
@@ -136,7 +136,7 @@ function TournamentTimelineBar({
     <ClosedMiniBar
       nowTs={now}
       isResolved={isResolved}
-      closeDate={closeDate ?? null}
+      winnersAnnouncedDate={winnersAnnouncedDate ?? null}
       timeline={timeline}
     />
   );
@@ -196,12 +196,12 @@ function ClosedMiniBar({
   nowTs,
   isResolved,
   timeline,
-  closeDate,
+  winnersAnnouncedDate,
 }: {
   nowTs: number | null;
   isResolved: boolean;
   timeline: TournamentTimeline | null;
-  closeDate: string | null;
+  winnersAnnouncedDate: string | null;
 }) {
   const t = useTranslations();
   const label = isResolved
@@ -211,7 +211,7 @@ function ClosedMiniBar({
 
   if (nowTs != null) {
     const resolvedTs = pickResolveTs(nowTs, timeline);
-    const winnersTs = pickWinnersTs(resolvedTs, closeDate);
+    const winnersTs = pickWinnersTs(resolvedTs, winnersAnnouncedDate);
 
     if (resolvedTs && nowTs >= resolvedTs) progress = 50;
     if (winnersTs && nowTs >= winnersTs) progress = 100;
@@ -286,8 +286,8 @@ function pickResolveTs(nowTs: number, timeline: TournamentTimeline | null) {
   return (isAllResolved ? actual : null) ?? effectiveScheduled ?? null;
 }
 
-function pickWinnersTs(resolvedTs: number | null, closeDate: string | null) {
-  const closeTs = safeTs(closeDate);
+function pickWinnersTs(resolvedTs: number | null, winnersAnnouncedDate: string | null) {
+  const closeTs = safeTs(winnersAnnouncedDate);
   if (closeTs) return closeTs;
   return resolvedTs ? resolvedTs + TWO_WEEKS_MS : null;
 }
diff --git a/front_end/src/app/(main)/(tournaments)/tournaments/helpers/index.ts b/front_end/src/app/(main)/(tournaments)/tournaments/helpers/index.ts
index c1646f4cc2..7f237ab27f 100644
--- a/front_end/src/app/(main)/(tournaments)/tournaments/helpers/index.ts
+++ b/front_end/src/app/(main)/(tournaments)/tournaments/helpers/index.ts
@@ -10,7 +10,7 @@ import {
 import { TournamentsSection } from "../types";
 
 const archiveEndTs = (t: TournamentPreview) =>
-  [t.forecasting_end_date, t.close_date, t.start_date]
+  [t.close_date, t.winners_announced_date, t.start_date]
     .map((s) => (s ? toDate(s.trim(), { timeZone: "UTC" }) : null))
     .find((d) => d && isValid(d))
     ?.getTime() ?? 0;
diff --git a/front_end/src/app/(main)/(tournaments)/tournaments/helpers/tournament_filters.ts b/front_end/src/app/(main)/(tournaments)/tournaments/helpers/tournament_filters.ts
index 5eac8b0553..337688af89 100644
--- a/front_end/src/app/(main)/(tournaments)/tournaments/helpers/tournament_filters.ts
+++ b/front_end/src/app/(main)/(tournaments)/tournaments/helpers/tournament_filters.ts
@@ -56,10 +56,10 @@ export function filterTournaments(
       case TournamentsSortBy.PrizePoolDesc:
         return Number(b.prize_pool) - Number(a.prize_pool);
 
-      case TournamentsSortBy.CloseDateAsc:
+      case TournamentsSortBy.WinnersAnnouncedDateAsc:
         return differenceInMilliseconds(
-          new Date(a.close_date ?? 0),
-          new Date(b.close_date ?? 0)
+          new Date(a.winners_announced_date ?? 0),
+          new Date(b.winners_announced_date ?? 0)
         );
 
       case TournamentsSortBy.StartDateDesc:
@@ -97,7 +97,7 @@ const statusRank = (t: TournamentPreview, nowTs: number): number => {
   const hasQuestions = t.questions_count > 0;
   const allClosed = hasQuestions && !!t.timeline?.all_questions_closed;
   const allResolved = hasQuestions && !!t.timeline?.all_questions_resolved;
-  const forecastEndTs = safeTs(t.forecasting_end_date);
+  const forecastEndTs = safeTs(t.close_date);
   const forecastEnded = forecastEndTs != null && nowTs >= forecastEndTs;
   const forecastOpen = forecastEndTs != null && !forecastEnded;
 
@@ -112,7 +112,7 @@ const orderValue = (t: TournamentPreview): number =>
 
 const durationPctPassed = (t: TournamentPreview, nowTs: number): number => {
   const startTs = safeTs(t.start_date);
-  const endTs = safeTs(t.forecasting_end_date ?? t.close_date);
+  const endTs = safeTs(t.close_date ?? t.winners_announced_date);
   if (startTs == null || endTs == null || endTs <= startTs) {
     return Number.POSITIVE_INFINITY;
   }
diff --git a/front_end/src/app/(main)/aib/minibench/page.tsx b/front_end/src/app/(main)/aib/minibench/page.tsx
index bd8755be9d..6b9f356b73 100644
--- a/front_end/src/app/(main)/aib/minibench/page.tsx
+++ b/front_end/src/app/(main)/aib/minibench/page.tsx
@@ -86,7 +86,7 @@ export default async function MiniBenchPage() {
                   name={tournament.name}
                   questionsCount={tournament.questions_count}
                   closeDate={
-                    tournament.forecasting_end_date || tournament.close_date
+                    tournament.close_date || tournament.winners_announced_date
                   }
                   showCloseDate={
                     tournament.type !== TournamentType.QuestionSeries
diff --git a/front_end/src/app/(main)/questions/[id]/components/post_approval_modal.tsx b/front_end/src/app/(main)/questions/[id]/components/post_approval_modal.tsx
index 51fda266b1..47b6f64e51 100644
--- a/front_end/src/app/(main)/questions/[id]/components/post_approval_modal.tsx
+++ b/front_end/src/app/(main)/questions/[id]/components/post_approval_modal.tsx
@@ -27,7 +27,7 @@ const PostApprovalModal: FC<{
   const [isLoading, setIsLoading] = useState(false);
   const [submitErrors, setSubmitErrors] = useState<ErrorResponse>();
   const [activeModal, setActiveModal] = useState<
-    "approvePost" | "confirmForecastingEndDate"
+    "approvePost" | "confirmCloseDate"
   >();
   const default_project = post.projects?.default_project;
 
@@ -161,23 +161,23 @@ const PostApprovalModal: FC<{
   const handleApprovePostSubmit = useCallback(async () => {
     if (!default_project) return;
 
-    const { forecasting_end_date, close_date } = default_project;
+    const { close_date, winners_announced_date } = default_project;
     const { scheduled_close_time, scheduled_resolve_time } = approvalData;
 
-    // Checks whether given post potentially affects Project.forecasting_end_date value
+    // Checks whether given post potentially affects Project.close_date value
     if (
       // Show popup for single questions only
       post.question &&
       // Only eligible for Tournaments
       default_project.type == TournamentType.Tournament &&
-      forecasting_end_date &&
       close_date &&
+      winners_announced_date &&
       scheduled_close_time &&
       scheduled_resolve_time &&
-      isAfter(new Date(scheduled_close_time), new Date(forecasting_end_date)) &&
-      !isAfter(new Date(scheduled_resolve_time), new Date(close_date))
+      isAfter(new Date(scheduled_close_time), new Date(close_date)) &&
+      !isAfter(new Date(scheduled_resolve_time), new Date(winners_announced_date))
     ) {
-      setActiveModal("confirmForecastingEndDate");
+      setActiveModal("confirmCloseDate");
     } else {
       await handleApprove();
     }
@@ -349,7 +349,7 @@ const PostApprovalModal: FC<{
         </div>
       </BaseModal>{" "}
       <BaseModal
-        isOpen={activeModal == "confirmForecastingEndDate"}
+        isOpen={activeModal == "confirmCloseDate"}
         label={t("postQuestionApproval")}
         onClose={() => {
           setIsOpen(false);
@@ -358,13 +358,9 @@ const PostApprovalModal: FC<{
         <div className="flex max-w-sm flex-col gap-4">
           <p className="text-base leading-tight">
             {t.rich("postNotebookMoveDateModalCopy", {
-              tournament_forecasting_end_date:
-                default_project?.forecasting_end_date
-                  ? formatDate(
-                      locale,
-                      new Date(default_project.forecasting_end_date)
-                    )
-                  : "",
+              tournament_close_date: default_project?.close_date
+                ? formatDate(locale, new Date(default_project.close_date))
+                : "",
               question_close_date: approvalData.scheduled_close_time
                 ? formatDate(
                     locale,
diff --git a/front_end/src/components/posts_feed/feed_tournament_tile.tsx b/front_end/src/components/posts_feed/feed_tournament_tile.tsx
index fc1e275bb7..d34264233c 100644
--- a/front_end/src/components/posts_feed/feed_tournament_tile.tsx
+++ b/front_end/src/components/posts_feed/feed_tournament_tile.tsx
@@ -39,8 +39,8 @@ const FeedTournamentTile: FC<Props> = ({ tile, feedPage }) => {
   const rawCloseTime =
     rule === FeedTileRule.ALL_QUESTIONS_RESOLVED && project_resolution_date
       ? project_resolution_date
-      : project.close_date ??
-        project.forecasting_end_date ??
+      : project.winners_announced_date ??
+        project.close_date ??
         project.start_date;
   const rawCloseTs = safeTs(rawCloseTime) ?? Date.now() + 1000;
   const scheduled_close_time = new Date(
@@ -158,7 +158,7 @@ function getStatusLabel(
 ): ReactNode | null {
   const now = Date.now();
   const startTs = safeTs(project.start_date);
-  const closeTs = safeTs(project.close_date);
+  const closeTs = safeTs(project.winners_announced_date);
   const resolveTs = safeTs(project_resolution_date);
 
   const strong = (chunks: ReactNode) => <strong>{chunks}</strong>;
diff --git a/front_end/src/stories/feed_card/binary_group/mock_data.ts b/front_end/src/stories/feed_card/binary_group/mock_data.ts
index 1a3a8c881e..5d445654bf 100644
--- a/front_end/src/stories/feed_card/binary_group/mock_data.ts
+++ b/front_end/src/stories/feed_card/binary_group/mock_data.ts
@@ -61,8 +61,8 @@ export const getMockData = (isResolved: boolean, isFanChart?: boolean) => {
           header_image: null,
           prize_pool: null,
           start_date: "2025-06-18T13:00:10Z",
+          winners_announced_date: null,
           close_date: null,
-          forecasting_end_date: null,
           meta_description: "",
           is_ongoing: true,
           user_permission: null,
@@ -82,8 +82,8 @@ export const getMockData = (isResolved: boolean, isFanChart?: boolean) => {
         header_image: null,
         prize_pool: null,
         start_date: "2025-06-18T13:00:10Z",
+        winners_announced_date: null,
         close_date: null,
-        forecasting_end_date: null,
         meta_description: "",
         is_ongoing: true,
         user_permission: null,
diff --git a/front_end/src/stories/feed_card/binary_question/mock_data.ts b/front_end/src/stories/feed_card/binary_question/mock_data.ts
index 4970bac01d..7e3419e002 100644
--- a/front_end/src/stories/feed_card/binary_question/mock_data.ts
+++ b/front_end/src/stories/feed_card/binary_question/mock_data.ts
@@ -35,8 +35,8 @@ export const getMockData = (isResolved: boolean) => {
           header_image: "https://cdn.metaculus.com/mcup-banner.jpg",
           prize_pool: "5000.00",
           start_date: "2025-05-02T17:00:00Z",
-          close_date: "2025-09-04T00:00:00Z",
-          forecasting_end_date: "2025-09-01T00:00:00Z",
+          winners_announced_date: "2025-09-04T00:00:00Z",
+          close_date: "2025-09-01T00:00:00Z",
           meta_description: "",
           is_ongoing: true,
           user_permission: null,
@@ -56,8 +56,8 @@ export const getMockData = (isResolved: boolean) => {
         header_image: "https://cdn.metaculus.com/mcup-banner.jpg",
         prize_pool: "5000.00",
         start_date: "2025-05-02T17:00:00Z",
-        close_date: "2025-09-04T00:00:00Z",
-        forecasting_end_date: "2025-09-01T00:00:00Z",
+        winners_announced_date: "2025-09-04T00:00:00Z",
+        close_date: "2025-09-01T00:00:00Z",
         meta_description: "",
         is_ongoing: true,
         user_permission: null,
diff --git a/front_end/src/stories/feed_card/continuous_question/mock_data.ts b/front_end/src/stories/feed_card/continuous_question/mock_data.ts
index f6a950ea33..4515a24806 100644
--- a/front_end/src/stories/feed_card/continuous_question/mock_data.ts
+++ b/front_end/src/stories/feed_card/continuous_question/mock_data.ts
@@ -61,8 +61,8 @@ export const getMockData = (isResolved: boolean) => {
           header_image: null,
           prize_pool: null,
           start_date: "2025-06-18T13:00:10Z",
+          winners_announced_date: null,
           close_date: null,
-          forecasting_end_date: null,
           meta_description: "",
           is_ongoing: true,
           user_permission: "admin",
@@ -81,8 +81,8 @@ export const getMockData = (isResolved: boolean) => {
           header_image: null,
           prize_pool: null,
           start_date: "2025-06-19T16:05:02Z",
+          winners_announced_date: null,
           close_date: null,
-          forecasting_end_date: null,
           meta_description: "",
           is_ongoing: true,
           user_permission: null,
@@ -102,8 +102,8 @@ export const getMockData = (isResolved: boolean) => {
         header_image: null,
         prize_pool: null,
         start_date: "2025-06-19T16:05:02Z",
+        winners_announced_date: null,
         close_date: null,
-        forecasting_end_date: null,
         meta_description: "",
         is_ongoing: true,
         user_permission: null,
diff --git a/front_end/src/stories/feed_card/date_group/mock_data.tsx b/front_end/src/stories/feed_card/date_group/mock_data.tsx
index 6099a3b02b..deffb8b18d 100644
--- a/front_end/src/stories/feed_card/date_group/mock_data.tsx
+++ b/front_end/src/stories/feed_card/date_group/mock_data.tsx
@@ -51,8 +51,8 @@ export const getMockData = (isResolved: boolean, isFanChart?: boolean) => {
           header_image: null,
           prize_pool: null,
           start_date: null,
+          winners_announced_date: null,
           close_date: null,
-          forecasting_end_date: null,
           meta_description: "",
           is_ongoing: null,
           user_permission: null,
@@ -72,8 +72,8 @@ export const getMockData = (isResolved: boolean, isFanChart?: boolean) => {
         header_image: null,
         prize_pool: null,
         start_date: null,
+        winners_announced_date: null,
         close_date: null,
-        forecasting_end_date: null,
         meta_description: "",
         is_ongoing: null,
         user_permission: null,
diff --git a/front_end/src/stories/feed_card/date_question/mock_data.ts b/front_end/src/stories/feed_card/date_question/mock_data.ts
index 011be17a82..e76be21f36 100644
--- a/front_end/src/stories/feed_card/date_question/mock_data.ts
+++ b/front_end/src/stories/feed_card/date_question/mock_data.ts
@@ -53,8 +53,8 @@ export const getMockData = (isResolved: boolean) => {
           header_image: "https://cdn.metaculus.com/neural_net.png",
           prize_pool: "6500.00",
           start_date: "2022-02-08T13:02:52Z",
-          close_date: "2022-04-16T15:54:55Z",
-          forecasting_end_date: null,
+          winners_announced_date: "2022-04-16T15:54:55Z",
+          close_date: null,
           meta_description:
             "Welcome to the AI Progress Essay Contest! Metaculus aims to support accurate forecasting of and preparation for the impacts of transformative AI.\r\n\r\nThank you for your participation!",
           is_ongoing: false,
@@ -74,8 +74,8 @@ export const getMockData = (isResolved: boolean) => {
           header_image: "https://cdn.metaculus.com/agi.png",
           prize_pool: null,
           start_date: "2023-08-09T13:41:42.701000Z",
-          close_date: "2023-08-09T13:41:42.701000Z",
-          forecasting_end_date: null,
+          winners_announced_date: "2023-08-09T13:41:42.701000Z",
+          close_date: null,
           meta_description: "",
           is_ongoing: false,
           user_permission: null,
@@ -109,8 +109,8 @@ export const getMockData = (isResolved: boolean) => {
         header_image: "https://cdn.metaculus.com/agi.png",
         prize_pool: null,
         start_date: "2023-08-09T13:41:42.701000Z",
-        close_date: "2023-08-09T13:41:42.701000Z",
-        forecasting_end_date: null,
+        winners_announced_date: "2023-08-09T13:41:42.701000Z",
+        close_date: null,
         meta_description: "",
         is_ongoing: false,
         user_permission: null,
@@ -148,8 +148,8 @@ export const getMockData = (isResolved: boolean) => {
           header_image: null,
           prize_pool: null,
           start_date: null,
+          winners_announced_date: null,
           close_date: null,
-          forecasting_end_date: null,
           meta_description: "",
           is_ongoing: null,
           user_permission: "admin",
diff --git a/front_end/src/stories/feed_card/mc_question/mock_data.ts b/front_end/src/stories/feed_card/mc_question/mock_data.ts
index ab0448fb12..1490d16e8c 100644
--- a/front_end/src/stories/feed_card/mc_question/mock_data.ts
+++ b/front_end/src/stories/feed_card/mc_question/mock_data.ts
@@ -54,8 +54,8 @@ export const getMockData = (isResolved: boolean) => {
           header_image: "https://cdn.metaculus.com/2027-banner.jpg",
           prize_pool: null,
           start_date: "2025-06-10T00:00:00Z",
+          winners_announced_date: null,
           close_date: null,
-          forecasting_end_date: null,
           meta_description: "",
           is_ongoing: true,
           user_permission: null,
@@ -75,8 +75,8 @@ export const getMockData = (isResolved: boolean) => {
         header_image: "https://cdn.metaculus.com/2027-banner.jpg",
         prize_pool: null,
         start_date: "2025-06-10T00:00:00Z",
+        winners_announced_date: null,
         close_date: null,
-        forecasting_end_date: null,
         meta_description: "",
         is_ongoing: true,
         user_permission: null,
diff --git a/front_end/src/stories/feed_card/numeric_group/mock_data.ts b/front_end/src/stories/feed_card/numeric_group/mock_data.ts
index ab7dce5802..e8489e7b04 100644
--- a/front_end/src/stories/feed_card/numeric_group/mock_data.ts
+++ b/front_end/src/stories/feed_card/numeric_group/mock_data.ts
@@ -35,8 +35,8 @@ export const getMockData = (isResolved: boolean, isFanChart?: boolean) => {
           header_image: "https://cdn.metaculus.com/potus-banner0.5x.webp",
           prize_pool: "15000.00",
           start_date: "2025-03-28T12:00:00Z",
-          close_date: "2029-01-20T00:00:00Z",
-          forecasting_end_date: "2029-01-03T00:00:00Z",
+          winners_announced_date: "2029-01-20T00:00:00Z",
+          close_date: "2029-01-03T00:00:00Z",
           meta_description: "",
           is_ongoing: true,
           user_permission: null,
@@ -56,8 +56,8 @@ export const getMockData = (isResolved: boolean, isFanChart?: boolean) => {
         header_image: "https://cdn.metaculus.com/potus-banner0.5x.webp",
         prize_pool: "15000.00",
         start_date: "2025-03-28T12:00:00Z",
-        close_date: "2029-01-20T00:00:00Z",
-        forecasting_end_date: "2029-01-03T00:00:00Z",
+        winners_announced_date: "2029-01-20T00:00:00Z",
+        close_date: "2029-01-03T00:00:00Z",
         meta_description: "",
         is_ongoing: true,
         user_permission: null,
diff --git a/front_end/src/types/projects.ts b/front_end/src/types/projects.ts
index 9a8e303111..06d040d8b4 100644
--- a/front_end/src/types/projects.ts
+++ b/front_end/src/types/projects.ts
@@ -45,7 +45,7 @@ export enum TaxonomyProjectType {
 export enum TournamentsSortBy {
   Featured = "featured",
   PrizePoolDesc = "-prize_pool",
-  CloseDateAsc = "close_date",
+  WinnersAnnouncedDateAsc = "winners_announced_date",
   StartDateDesc = "-start_date",
 }
 
@@ -62,8 +62,8 @@ export type TournamentPreview = Project & {
   forecasters_count: number;
   prize_pool: string | null;
   start_date: string;
+  winners_announced_date?: string;
   close_date?: string;
-  forecasting_end_date?: string;
   is_ongoing: boolean;
   created_at: string;
   questions_count: number;
diff --git a/posts/services/common.py b/posts/services/common.py
index 169c198772..61b110561b 100644
--- a/posts/services/common.py
+++ b/posts/services/common.py
@@ -19,7 +19,7 @@
 from projects.services.common import (
     get_projects_staff_users,
     get_site_main_project,
-    move_project_forecasting_end_date,
+    move_project_close_date,
 )
 from questions.models import Question
 from questions.services.common import (
@@ -432,7 +432,7 @@ def approve_post(
             Project.ProjectTypes.TOURNAMENT,
             Project.ProjectTypes.QUESTION_SERIES,
         ]:
-            move_project_forecasting_end_date(project, post)
+            move_project_close_date(project, post)
 
     post.update_pseudo_materialized_fields()
 
diff --git a/projects/admin.py b/projects/admin.py
index f356b9928c..28b0bfc1e0 100644
--- a/projects/admin.py
+++ b/projects/admin.py
@@ -187,7 +187,7 @@ def closes_before(self, obj):
             if project.primary_leaderboard
             else None
         )
-        finalize_time = finalize_time or project.close_date
+        finalize_time = finalize_time or project.winners_announced_date
         if not finalize_time:
             return True
 
@@ -211,7 +211,7 @@ def resolved_before(self, obj):
             if project.primary_leaderboard
             else None
         )
-        finalize_time = finalize_time or project.close_date
+        finalize_time = finalize_time or project.winners_announced_date
         if not finalize_time:
             return True
 
@@ -368,19 +368,19 @@ def __init__(self, *args, **kwargs):
     def clean(self):
         cleaned_data = super().clean()
         start_date = cleaned_data.get("start_date")
-        forecasting_end_date = cleaned_data.get("forecasting_end_date")
         close_date = cleaned_data.get("close_date")
+        winners_announced_date = cleaned_data.get("winners_announced_date")
 
-        if forecasting_end_date and close_date and forecasting_end_date > close_date:
+        if close_date and winners_announced_date and close_date > winners_announced_date:
             self.add_error(
-                "forecasting_end_date",
-                "Forecasting end date must be before the close date.",
+                "close_date",
+                "Close date must be before the winners announced date.",
             )
 
-        if start_date and forecasting_end_date and start_date > forecasting_end_date:
+        if start_date and close_date and start_date > close_date:
             self.add_error(
                 "start_date",
-                "Start date must be before the forecasting end date.",
+                "Start date must be before the close date.",
             )
 
         return cleaned_data
@@ -844,7 +844,7 @@ def questions_summary(self, obj):
         all_ids = list(all_questions.values_list("id", flat=True))
         all_count = len(all_ids)
 
-        finalize_time = leaderboard.finalize_time or obj.close_date
+        finalize_time = leaderboard.finalize_time or obj.winners_announced_date
         if finalize_time:
             in_leaderboard_qs = all_questions.filter(
                 Q(resolution_set_time__isnull=True)
@@ -920,7 +920,7 @@ def primary_leaderboard_finalize_time(self, obj):
             return None
         leaderboard = obj.primary_leaderboard
         if leaderboard:
-            return leaderboard.finalize_time or (obj.close_date if obj else None)
+            return leaderboard.finalize_time or (obj.winners_announced_date if obj else None)
 
     primary_leaderboard_finalize_time.short_description = (
         "Time when Primary Leaderboard is Finalized"
diff --git a/projects/migrations/0024_rename_project_date_fields.py b/projects/migrations/0024_rename_project_date_fields.py
new file mode 100644
index 0000000000..761368de89
--- /dev/null
+++ b/projects/migrations/0024_rename_project_date_fields.py
@@ -0,0 +1,53 @@
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("projects", "0023_alter_project_bot_leaderboard_status"),
+    ]
+
+    operations = [
+        # Swap close_date and forecasting_end_date via a temporary name.
+        # close_date (old: tournament wrap-up) -> winners_announced_date
+        # forecasting_end_date (old: last scored question close) -> close_date
+        migrations.RenameField(
+            model_name="project",
+            old_name="close_date",
+            new_name="_winners_announced_date_tmp",
+        ),
+        migrations.RenameField(
+            model_name="project",
+            old_name="forecasting_end_date",
+            new_name="close_date",
+        ),
+        migrations.RenameField(
+            model_name="project",
+            old_name="_winners_announced_date_tmp",
+            new_name="winners_announced_date",
+        ),
+        migrations.AlterField(
+            model_name="project",
+            name="winners_announced_date",
+            field=models.DateTimeField(
+                blank=True,
+                help_text=(
+                    "The date the tournament wraps up and prizes will be paid. "
+                    "All questions that should be included in the leaderboard must close and resolve before this date."
+                ),
+                null=True,
+            ),
+        ),
+        migrations.AlterField(
+            model_name="project",
+            name="close_date",
+            field=models.DateTimeField(
+                blank=True,
+                help_text=(
+                    "The date the last question that counts for the tournament is scheduled to close. "
+                    "If such questions have scheduled close dates after the project Winners announced date, "
+                    "the front end will show the latest of these close dates."
+                ),
+                null=True,
+            ),
+        ),
+    ]
diff --git a/projects/models.py b/projects/models.py
index 5df748a39d..7c4897e715 100644
--- a/projects/models.py
+++ b/projects/models.py
@@ -291,22 +291,21 @@ class BotLeaderboardStatus(models.TextChoices):
         default=None, decimal_places=2, max_digits=15, null=True, blank=True
     )
     start_date = models.DateTimeField(null=True, blank=True)
-    close_date = models.DateTimeField(
+    winners_announced_date = models.DateTimeField(
         null=True,
         blank=True,
         help_text=(
             "The date the tournament wraps up and prizes will be paid. "
-            "All questions that should be included in the leaderboard must close and resolve before this date. "
-            "This is displayed on the front end as the “Winners announced date”"
+            "All questions that should be included in the leaderboard must close and resolve before this date."
         ),
     )
-    forecasting_end_date = models.DateTimeField(
+    close_date = models.DateTimeField(
         null=True,
         blank=True,
         help_text=(
-            "The date the last scored question that counts for the tournament closes."
-            "The date shown is the latest of the Forecasting end date "
-            "and the latest question close date closing and resolving before the Close date."
+            "The date the last question that counts for the tournament is scheduled to close. "
+            "If such questions have scheduled close dates after the project Winners announced date, "
+            "the front end will show the latest of these close dates."
         ),
     )
     sign_up_fields = models.JSONField(
@@ -443,7 +442,11 @@ def is_ongoing(self):
             self.ProjectTypes.QUESTION_SERIES,
             self.ProjectTypes.INDEX,
         ):
-            return self.close_date > django_timezone.now() if self.close_date else True
+            return (
+                self.winners_announced_date > django_timezone.now()
+                if self.winners_announced_date
+                else True
+            )
 
     def get_users_for_permission(self, min_permission: ObjectPermission):
         """
diff --git a/projects/serializers/common.py b/projects/serializers/common.py
index 6b9f6e58a8..997ff2340a 100644
--- a/projects/serializers/common.py
+++ b/projects/serializers/common.py
@@ -35,8 +35,8 @@ class Meta:
             "order",
             "prize_pool",
             "start_date",
+            "winners_announced_date",
             "close_date",
-            "forecasting_end_date",
             "html_metadata_json",
             "default_permission",
             "visibility",
@@ -90,8 +90,8 @@ class Meta:
             "header_image",
             "prize_pool",
             "start_date",
+            "winners_announced_date",
             "close_date",
-            "forecasting_end_date",
             "html_metadata_json",
             "is_ongoing",
             "user_permission",
diff --git a/projects/services/common.py b/projects/services/common.py
index 432a5fad57..3b8e64fb30 100644
--- a/projects/services/common.py
+++ b/projects/services/common.py
@@ -137,25 +137,25 @@ def get_projects_for_posts(
     return post_projects_map
 
 
-def move_project_forecasting_end_date(project: Project, post: Post):
-    if not project.close_date:
+def move_project_close_date(project: Project, post: Post):
+    if not project.winners_announced_date:
         return
 
-    forecasting_end_date = project.forecasting_end_date
+    close_date = project.close_date
 
     for question in post.get_questions():
         if (
-            question.scheduled_close_time <= project.close_date
-            and question.scheduled_resolve_time <= project.close_date
+            question.scheduled_close_time <= project.winners_announced_date
+            and question.scheduled_resolve_time <= project.winners_announced_date
             and (
-                not forecasting_end_date
-                or question.scheduled_close_time > forecasting_end_date
+                not close_date
+                or question.scheduled_close_time > close_date
             )
         ):
-            forecasting_end_date = question.scheduled_close_time
+            close_date = question.scheduled_close_time
 
-    project.forecasting_end_date = forecasting_end_date
-    project.save(update_fields=["forecasting_end_date"])
+    project.close_date = close_date
+    project.save(update_fields=["close_date"])
 
 
 def get_questions_by_project(
@@ -213,15 +213,15 @@ def _calculate_timeline_data(project: Project, questions: Iterable[Question]) ->
     actual_resolve_times = []
     scheduled_resolve_times = []
 
-    project_close_date = project.close_date or make_aware(datetime.max)
-    project_forecasting_end_date = project.forecasting_end_date or project_close_date
+    project_winners_announced_date = project.winners_announced_date or make_aware(datetime.max)
+    project_close_date = project.close_date or project_winners_announced_date
 
     for question in questions:
         if all_questions_resolved:
             all_questions_resolved = (
                 question.actual_resolve_time
                 # Or treat as resolved as scheduled resolution is in the future
-                or question.scheduled_resolve_time > project_close_date
+                or question.scheduled_resolve_time > project_winners_announced_date
             )
 
         # Determine questions closure
@@ -229,7 +229,7 @@ def _calculate_timeline_data(project: Project, questions: Iterable[Question]) ->
             close_time = question.actual_close_time or question.scheduled_close_time
             all_questions_closed = (
                 close_time <= timezone.now()
-                or close_time > project_forecasting_end_date
+                or close_time > project_close_date
             )
 
         if question.cp_reveal_time:
@@ -245,7 +245,7 @@ def _calculate_timeline_data(project: Project, questions: Iterable[Question]) ->
             scheduled_resolve_times.append(scheduled_resolve_time)
 
     def get_max(data: list):
-        return max([x for x in data if x <= project_close_date], default=None)
+        return max([x for x in data if x <= project_winners_announced_date], default=None)
 
     return {
         "last_cp_reveal_time": get_max(cp_reveal_times),
@@ -349,13 +349,13 @@ def get_feed_project_tiles() -> list[dict]:
             for q in questions
             if q.resolution_set_time and q.resolution_set_time >= three_days_ago
         )
-        project_close_date = project.close_date or make_aware(datetime.max)
+        project_winners_announced_date = project.winners_announced_date or make_aware(datetime.max)
         all_resolved = len(questions) > 0 and all(
             q.actual_resolve_time
             # Or treat as resolved if scheduled resolution is in the future
             or (
                 q.scheduled_resolve_time
-                and q.scheduled_resolve_time > project_close_date
+                and q.scheduled_resolve_time > project_winners_announced_date
             )
             for q in questions
         )
@@ -365,12 +365,12 @@ def get_feed_project_tiles() -> list[dict]:
                 for q in questions
                 if q.actual_resolve_time
                 and q.resolution_set_time
-                and q.actual_resolve_time <= project_close_date
+                and q.actual_resolve_time <= project_winners_announced_date
             ),
             default=None,
         )
         project_resolution_date = (
-            max(last_resolve_time, project.close_date or last_resolve_time)
+            max(last_resolve_time, project.winners_announced_date or last_resolve_time)
             if last_resolve_time
             else None
         )
@@ -411,9 +411,9 @@ def get_feed_project_tiles() -> list[dict]:
             p
             for p in projects
             if p.start_date
-            and p.close_date
-            and (total := (p.close_date - p.start_date).total_seconds()) > 0
-            and (p.close_date - now).total_seconds() / total > 0.5
+            and p.winners_announced_date
+            and (total := (p.winners_announced_date - p.start_date).total_seconds()) > 0
+            and (p.winners_announced_date - now).total_seconds() / total > 0.5
         ]
         if candidates:
             pick = random.choice(candidates)
diff --git a/scoring/jobs.py b/scoring/jobs.py
index 65d671c01b..6e4f2296be 100644
--- a/scoring/jobs.py
+++ b/scoring/jobs.py
@@ -46,7 +46,7 @@ def finalize_leaderboards():
     active_leaderboards = Leaderboard.objects.filter(finalized=False)
     for leaderboard in active_leaderboards:
         finalize_time = leaderboard.finalize_time or (
-            leaderboard.project.close_date if leaderboard.project else None
+            leaderboard.project.winners_announced_date if leaderboard.project else None
         )
         if finalize_time and finalize_time <= timezone.now():
             logger.info(f"Finalizing leaderboard: {leaderboard}")
diff --git a/scoring/models.py b/scoring/models.py
index 926ebdb405..30d34ca654 100644
--- a/scoring/models.py
+++ b/scoring/models.py
@@ -177,7 +177,7 @@ class Leaderboard(TimeStampedModel):
     finalize_time = models.DateTimeField(
         null=True,
         blank=True,
-        help_text="""Optional. If not set, the Project's close_date will be used instead.
+        help_text="""Optional. If not set, the Project's winners_announced_date will be used instead.
         </br>- For all Leaderboards: used to filter out questions that have a resolution_set_time after this (as they were resolved after this Leaderboard was finalized).
         </br>- Filtering MedalExclusionRecords: If set and end_time is not set, MedalExclusionRecords that have a start_time less than this (and no end_time or an end_time later that this Leaderboard's start_time) will be triggered.
         """,
diff --git a/scoring/utils.py b/scoring/utils.py
index 4e287fbd7c..7d5142ee9c 100644
--- a/scoring/utils.py
+++ b/scoring/utils.py
@@ -152,7 +152,7 @@ def retrieve_question_scores(
     }
 
     finalize_time = leaderboard.finalize_time or (
-        leaderboard.project.close_date if leaderboard.project else None
+        leaderboard.project.winners_announced_date if leaderboard.project else None
     )
     if finalize_time:
         qs_filters["question__scheduled_close_time__lte"] = finalize_time
@@ -446,10 +446,10 @@ def assign_exclusions_(
         leaderboard.project.start_date if leaderboard.project else None
     )
     end_time = leaderboard.end_time or (
-        leaderboard.project.close_date if leaderboard.project else None
+        leaderboard.project.winners_announced_date if leaderboard.project else None
     )
     finalize_time = leaderboard.finalize_time or (
-        leaderboard.project.close_date if leaderboard.project else None
+        leaderboard.project.winners_announced_date if leaderboard.project else None
     )
     if start_time:
         exclusion_records = exclusion_records.filter(
@@ -592,7 +592,7 @@ def calculate_medals_points_at_time(at_time):
     # Look only at leaderboard entries which are closed before the timestamp
     relevant_entries_qs = LeaderboardEntry.objects.filter(
         Q(leaderboard__end_time__lte=at_time)
-        | Q(leaderboard__project__close_date__lte=at_time),
+        | Q(leaderboard__project__winners_announced_date__lte=at_time),
         leaderboard__project__default_permission=ObjectPermission.FORECASTER,
     )
 
@@ -601,7 +601,7 @@ def calculate_medals_points_at_time(at_time):
     leaderboard_age_expr = Case(
         When(
             leaderboard__project__type="tournament",
-            then=(at_time.year - ExtractYear(F("leaderboard__project__close_date"))),
+            then=(at_time.year - ExtractYear(F("leaderboard__project__winners_announced_date"))),
         ),
         When(
             leaderboard__end_time__isnull=False,
@@ -779,7 +779,7 @@ def process_entries_for_leaderboard_(
     assign_prizes_(entries, prize_pool)
     # check if we're ready to finalize and assign medals/prizes if applicable
     finalize_time = leaderboard.finalize_time or (
-        project.close_date if project else None
+        project.winners_announced_date if project else None
     )
     if force_finalize or (finalize_time and (timezone.now() >= finalize_time)):
         if (