diff --git a/app/db/tables.ts b/app/db/tables.ts
index c080f9286..1c7b8bbb4 100644
--- a/app/db/tables.ts
+++ b/app/db/tables.ts
@@ -465,7 +465,7 @@ export interface TournamentRound {
   groupId: number;
   id: GeneratedAlways<number>;
   number: number;
-  stageId: StageId;
+  stageId: number;
 }
 
 export interface TournamentStage {
diff --git a/app/features/tournament/TournamentRepository.server.ts b/app/features/tournament/TournamentRepository.server.ts
index ae2454422..a1818713b 100644
--- a/app/features/tournament/TournamentRepository.server.ts
+++ b/app/features/tournament/TournamentRepository.server.ts
@@ -516,3 +516,27 @@ export function setMatchAsCasted({
       .execute();
   });
 }
+
+export function resetBracket(tournamentStageId: number) {
+  return db.transaction().execute(async (trx) => {
+    await trx
+      .deleteFrom("TournamentMatch")
+      .where("stageId", "=", tournamentStageId)
+      .execute();
+
+    await trx
+      .deleteFrom("TournamentRound")
+      .where("stageId", "=", tournamentStageId)
+      .execute();
+
+    await trx
+      .deleteFrom("TournamentGroup")
+      .where("stageId", "=", tournamentStageId)
+      .execute();
+
+    await trx
+      .deleteFrom("TournamentStage")
+      .where("id", "=", tournamentStageId)
+      .execute();
+  });
+}
diff --git a/app/features/tournament/routes/to.$id.admin.tsx b/app/features/tournament/routes/to.$id.admin.tsx
index 3b8a6dc81..bbc80f2af 100644
--- a/app/features/tournament/routes/to.$id.admin.tsx
+++ b/app/features/tournament/routes/to.$id.admin.tsx
@@ -37,6 +37,7 @@ import { adminActionSchema } from "../tournament-schemas.server";
 import { tournamentIdFromParams } from "../tournament-utils";
 import { useTournament } from "./to.$id";
 import { findMapPoolByTeamId } from "~/features/tournament-bracket/queries/findMapPoolByTeamId.server";
+import { Input } from "~/components/Input";
 
 export const action: ActionFunction = async ({ request, params }) => {
   const user = await requireUserId(request);
@@ -164,8 +165,6 @@ export const action: ActionFunction = async ({ request, params }) => {
       });
       break;
     }
-    // TODO: could also handle the case of admin trying
-    // to add members from a checked in team
     case "ADD_MEMBER": {
       validateIsTournamentOrganizer();
       const team = tournament.teamById(data.teamId);
@@ -226,6 +225,31 @@ export const action: ActionFunction = async ({ request, params }) => {
       });
       break;
     }
+    case "RESET_BRACKET": {
+      validateIsTournamentOrganizer();
+      validate(!tournament.ctx.isFinalized, "Tournament is finalized");
+
+      const bracketToResetIdx = tournament.brackets.findIndex(
+        (b) => b.id === data.stageId,
+      );
+      const bracketToReset = tournament.brackets[bracketToResetIdx];
+      validate(bracketToReset, "Invalid bracket id");
+      validate(!bracketToReset.preview, "Bracket has not started");
+
+      const inProgressBrackets = tournament.brackets.filter((b) => !b.preview);
+      validate(
+        inProgressBrackets.every(
+          (b) =>
+            !b.sources ||
+            b.sources.every((s) => s.bracketIdx !== bracketToResetIdx),
+        ),
+        "Some bracket that sources teams from this bracket has started",
+      );
+
+      await TournamentRepository.resetBracket(data.stageId);
+
+      break;
+    }
     default: {
       assertUnreachable(data);
     }
@@ -287,6 +311,8 @@ export default function TournamentAdminPage() {
       <CastTwitchAccounts />
       <Divider smallText>Participant list download</Divider>
       <DownloadParticipants />
+      <Divider smallText>Bracket reset</Divider>
+      <BracketReset />
       {isAdmin(user) ? <EnableMapList /> : null}
     </div>
   );
@@ -762,3 +788,68 @@ function handleDownload({
   document.body.appendChild(element);
   element.click();
 }
+
+function BracketReset() {
+  const tournament = useTournament();
+  const fetcher = useFetcher();
+  const inProgressBrackets = tournament.brackets.filter((b) => !b.preview);
+  const [_bracketToDelete, setBracketToDelete] = React.useState(
+    inProgressBrackets[0]?.id,
+  );
+  const [confirmText, setConfirmText] = React.useState("");
+
+  if (inProgressBrackets.length === 0) {
+    return <div className="text-lighter text-sm">No brackets in progress</div>;
+  }
+
+  const bracketToDelete = _bracketToDelete ?? inProgressBrackets[0].id;
+
+  const bracketToDeleteName = inProgressBrackets.find(
+    (bracket) => bracket.id === bracketToDelete,
+  )?.name;
+
+  return (
+    <div>
+      <fetcher.Form method="post" className="stack horizontal sm items-end">
+        <div>
+          <label htmlFor="bracket">Bracket</label>
+          <select
+            id="bracket"
+            name="stageId"
+            value={bracketToDelete}
+            onChange={(e) => setBracketToDelete(Number(e.target.value))}
+          >
+            {inProgressBrackets.map((bracket) => (
+              <option key={bracket.name} value={bracket.id}>
+                {bracket.name}
+              </option>
+            ))}
+          </select>
+        </div>
+        <div>
+          <label htmlFor="bracket-confirmation">
+            Type bracket name (&quot;{bracketToDeleteName}&quot;) to confirm
+          </label>
+          <Input
+            value={confirmText}
+            onChange={(e) => setConfirmText(e.target.value)}
+            id="bracket-confirmation"
+          />
+        </div>
+        <SubmitButton
+          _action="RESET_BRACKET"
+          state={fetcher.state}
+          disabled={confirmText !== bracketToDeleteName}
+          testId="reset-bracket-button"
+        >
+          Reset
+        </SubmitButton>
+      </fetcher.Form>
+      <FormMessage type="error" className="mt-2">
+        Resetting a bracket will delete all the match results in it (but not
+        other brackets) and reset the bracket to its initial state allowing you
+        to change participating teams.
+      </FormMessage>
+    </div>
+  );
+}
diff --git a/app/features/tournament/tournament-schemas.server.ts b/app/features/tournament/tournament-schemas.server.ts
index 25783ec08..95c957b8a 100644
--- a/app/features/tournament/tournament-schemas.server.ts
+++ b/app/features/tournament/tournament-schemas.server.ts
@@ -104,6 +104,10 @@ export const adminActionSchema = z.union([
       z.array(z.string()),
     ),
   }),
+  z.object({
+    _action: _action("RESET_BRACKET"),
+    stageId: id,
+  }),
 ]);
 
 export const joinSchema = z.object({
diff --git a/e2e/tournament-bracket.spec.ts b/e2e/tournament-bracket.spec.ts
index 662eec5f0..dd032016f 100644
--- a/e2e/tournament-bracket.spec.ts
+++ b/e2e/tournament-bracket.spec.ts
@@ -1,4 +1,4 @@
-import { type Page, test, expect } from "@playwright/test";
+import { expect, test, type Page } from "@playwright/test";
 import { ADMIN_DISCORD_ID } from "~/constants";
 import { NZAP_TEST_ID } from "~/db/seed/constants";
 import {
@@ -452,4 +452,41 @@ test.describe("Tournament bracket", () => {
     await backToBracket(page);
     await expect(page.getByText("🔴 LIVE")).toBeVisible();
   });
+
+  test("resets bracket", async ({ page }) => {
+    const tournamentId = 1;
+
+    await seed(page);
+    await impersonate(page);
+
+    await navigate({
+      page,
+      url: tournamentBracketsPage({ tournamentId }),
+    });
+
+    await page.getByTestId("finalize-bracket-button").click();
+
+    await isNotVisible(page.locator('[data-match-id="1"]'));
+    await page.locator('[data-match-id="2"]').click();
+    await reportResult({
+      page,
+      amountOfMapsToReport: 2,
+      sidesWithMoreThanFourPlayers: ["last"],
+    });
+
+    await page.getByTestId("admin-tab").click();
+    await page
+      .getByLabel('Type bracket name ("Main bracket") to confirm')
+      .fill("Main bracket");
+    await page.getByTestId("reset-bracket-button").click();
+
+    await page.getByLabel("Action").selectOption("CHECK_IN");
+    await page.getByLabel("Team").selectOption("1");
+    await submit(page);
+
+    await page.getByTestId("brackets-tab").click();
+    await page.getByTestId("finalize-bracket-button").click();
+    // bye is gone
+    await expect(page.locator('[data-match-id="1"]')).toBeVisible();
+  });
 });