diff --git a/app/features/tournament-bracket/core/tests/mocks-li.ts b/app/features/tournament-bracket/core/tests/mocks-li.ts
index f30984f93..6d06c76bb 100644
--- a/app/features/tournament-bracket/core/tests/mocks-li.ts
+++ b/app/features/tournament-bracket/core/tests/mocks-li.ts
@@ -6834,6 +6834,7 @@ export const LOW_INK_DECEMBER_2024 = (): TournamentData => ({
 		id: 815,
 		eventId: 2614,
 		parentTournamentId: null,
+		parentTournamentName: null,
 		tier: null,
 		tentativeTier: null,
 		discordUrl: "https://discord.gg/F7RaNUR",
diff --git a/app/features/tournament-bracket/core/tests/mocks-sos.ts b/app/features/tournament-bracket/core/tests/mocks-sos.ts
index 978af01bd..c3ba573b9 100644
--- a/app/features/tournament-bracket/core/tests/mocks-sos.ts
+++ b/app/features/tournament-bracket/core/tests/mocks-sos.ts
@@ -1934,6 +1934,7 @@ export const SWIM_OR_SINK_167 = (
 	ctx: {
 		id: 672,
 		parentTournamentId: null,
+		parentTournamentName: null,
 		tier: null,
 		tentativeTier: null,
 		eventId: 2425,
diff --git a/app/features/tournament-bracket/core/tests/mocks-zones-weekly.ts b/app/features/tournament-bracket/core/tests/mocks-zones-weekly.ts
index 928485c0c..d849e7444 100644
--- a/app/features/tournament-bracket/core/tests/mocks-zones-weekly.ts
+++ b/app/features/tournament-bracket/core/tests/mocks-zones-weekly.ts
@@ -323,6 +323,7 @@ export const ZONES_WEEKLY_38 = (): TournamentData => ({
 		mapPickingStyle: "TO",
 		hasRules: true,
 		parentTournamentId: null,
+		parentTournamentName: null,
 		name: "Zones Weekly 38",
 		startTime: 1734685200,
 		isFinalized: 0,
diff --git a/app/features/tournament-bracket/core/tests/mocks.ts b/app/features/tournament-bracket/core/tests/mocks.ts
index 22eaa6cb7..4708ce4a8 100644
--- a/app/features/tournament-bracket/core/tests/mocks.ts
+++ b/app/features/tournament-bracket/core/tests/mocks.ts
@@ -1399,6 +1399,7 @@ export const PADDLING_POOL_257 = () =>
 			tier: null,
 			tentativeTier: null,
 			parentTournamentId: null,
+			parentTournamentName: null,
 			tags: null,
 			eventId: 1352,
 			bracketProgressionOverrides: [],
@@ -8068,6 +8069,7 @@ export const PADDLING_POOL_255 = () =>
 			tier: null,
 			tentativeTier: null,
 			parentTournamentId: null,
+			parentTournamentName: null,
 			tags: null,
 			eventId: 1286,
 			bracketProgressionOverrides: [],
@@ -15074,6 +15076,7 @@ export const IN_THE_ZONE_32 = ({
 		ctx: {
 			id: 11,
 			parentTournamentId: null,
+			parentTournamentName: null,
 			organization: null,
 			tier: null,
 			tentativeTier: null,
diff --git a/app/features/tournament-bracket/core/tests/test-utils.ts b/app/features/tournament-bracket/core/tests/test-utils.ts
index 54316c09d..e39bc6d27 100644
--- a/app/features/tournament-bracket/core/tests/test-utils.ts
+++ b/app/features/tournament-bracket/core/tests/test-utils.ts
@@ -67,6 +67,7 @@ export const testTournament = ({
 			tier: null,
 			tentativeTier: null,
 			parentTournamentId: null,
+			parentTournamentName: null,
 			hasRules: false,
 			logoUrl: "/test.avif",
 			discordUrl: null,
diff --git a/app/features/tournament/TournamentRepository.server.ts b/app/features/tournament/TournamentRepository.server.ts
index 32be3cee6..117470bcd 100644
--- a/app/features/tournament/TournamentRepository.server.ts
+++ b/app/features/tournament/TournamentRepository.server.ts
@@ -58,6 +58,15 @@ export async function findById(id: number) {
 			"Tournament.mapPickingStyle",
 			sql<boolean>`"Tournament"."rules" is not null`.as("hasRules"),
 			"Tournament.parentTournamentId",
+			eb
+				.selectFrom("CalendarEvent as ParentCalendarEvent")
+				.select("ParentCalendarEvent.name")
+				.whereRef(
+					"ParentCalendarEvent.tournamentId",
+					"=",
+					"Tournament.parentTournamentId",
+				)
+				.as("parentTournamentName"),
 			"Tournament.tier",
 			"CalendarEvent.name",
 			"CalendarEventDate.startTime",
diff --git a/app/features/tournament/components/TournamentHeader.tsx b/app/features/tournament/components/TournamentHeader.tsx
index 266ce637c..d9d5ba288 100644
--- a/app/features/tournament/components/TournamentHeader.tsx
+++ b/app/features/tournament/components/TournamentHeader.tsx
@@ -16,14 +16,11 @@ import {
 	tournamentPage,
 	userPage,
 } from "~/utils/urls";
-import { splitTournamentName } from "../tournament-utils";
+import { tournamentNameParts } from "../tournament-utils";
 import styles from "./TournamentHeader.module.css";
 
 export function TournamentHeader({ tournament }: { tournament: Tournament }) {
-	const { name, subtext } = splitTournamentName(
-		tournament.ctx.name,
-		tournament.ctx.organization?.series ?? [],
-	);
+	const { name, subtext } = tournamentNameParts(tournament);
 
 	const startTimes = R.uniqueBy(
 		[
diff --git a/app/features/tournament/components/TournamentNav.tsx b/app/features/tournament/components/TournamentNav.tsx
index 70f260a33..8989f5455 100644
--- a/app/features/tournament/components/TournamentNav.tsx
+++ b/app/features/tournament/components/TournamentNav.tsx
@@ -26,7 +26,7 @@ import {
 	tournamentInfoPage,
 	tournamentRulesPage,
 } from "~/utils/urls";
-import { splitTournamentName } from "../tournament-utils";
+import { tournamentNameParts } from "../tournament-utils";
 import styles from "./TournamentNav.module.css";
 
 type NavItemKey =
@@ -77,10 +77,7 @@ export function TournamentNav({
 
 	const overflowItems = navItems.slice(visibleCount);
 
-	const { name, subtext } = splitTournamentName(
-		tournament.ctx.name,
-		tournament.ctx.organization?.series ?? [],
-	);
+	const { name, subtext } = tournamentNameParts(tournament);
 
 	const homeHref = tournament.isLeagueDivision
 		? tournamentInfoPage(tournament.ctx.parentTournamentId!)
diff --git a/app/features/tournament/tournament-utils.test.ts b/app/features/tournament/tournament-utils.test.ts
index a201a89e6..7309a3672 100644
--- a/app/features/tournament/tournament-utils.test.ts
+++ b/app/features/tournament/tournament-utils.test.ts
@@ -2,6 +2,7 @@ import { describe, expect, it } from "vitest";
 import type { CastedMatchesInfo } from "~/db/tables";
 import * as Seasons from "../mmr/core/Seasons";
 import type { ParsedBracket } from "../tournament-bracket/core/Progression";
+import { testTournament } from "../tournament-bracket/core/tests/test-utils";
 import {
 	bracketProgressionLabel,
 	compareTeamsForOrdering,
@@ -11,6 +12,7 @@ import {
 	splitTournamentName,
 	type TeamForOrdering,
 	tournamentInWeaponReportingWindow,
+	tournamentNameParts,
 	updatedCastedMatchesInfo,
 } from "./tournament-utils";
 
@@ -756,6 +758,44 @@ describe("splitTournamentName", () => {
 	});
 });
 
+describe("tournamentNameParts", () => {
+	it("uses the parent tournament name and division subtext for a league division", () => {
+		const tournament = testTournament({
+			ctx: {
+				name: "LUTI: Season 17 - Division 1",
+				parentTournamentId: 1,
+				parentTournamentName: "LUTI: Season 17",
+			},
+		});
+
+		expect(tournamentNameParts(tournament)).toEqual({
+			name: "LUTI: Season 17",
+			subtext: "Division 1",
+		});
+	});
+
+	it("falls back to the organization series when not a league division", () => {
+		const tournament = testTournament({
+			ctx: {
+				name: "In The Zone 54",
+				organization: {
+					id: 1,
+					name: "Sendou's Tournaments",
+					slug: "sendou",
+					logoUrl: null,
+					members: [],
+					series: [{ name: "In The Zone" }],
+				},
+			},
+		});
+
+		expect(tournamentNameParts(tournament)).toEqual({
+			name: "In The Zone",
+			subtext: "54",
+		});
+	});
+});
+
 describe("bracketProgressionLabel", () => {
 	it("returns the short code for a single stage", () => {
 		expect(bracketProgressionLabel([{ type: "single_elimination" }])).toBe(
diff --git a/app/features/tournament/tournament-utils.ts b/app/features/tournament/tournament-utils.ts
index 24af8bac0..210b3b50e 100644
--- a/app/features/tournament/tournament-utils.ts
+++ b/app/features/tournament/tournament-utils.ts
@@ -464,6 +464,31 @@ export function splitTournamentName(
 	return { name: matchingSeries.name, subtext };
 }
 
+/**
+ * Resolves the display name and subtext for a tournament's identity.
+ *
+ * For a league division the parent tournament name is used as the base name and
+ * the division name (e.g. `"Division 1"`) becomes the subtext. For all other
+ * tournaments the split is based on the organization's tournament series.
+ *
+ * @see {@link splitTournamentName}
+ */
+export function tournamentNameParts(tournament: TournamentClass): {
+	name: string;
+	subtext?: string;
+} {
+	if (tournament.isLeagueDivision && tournament.ctx.parentTournamentName) {
+		return splitTournamentName(tournament.ctx.name, [
+			{ name: tournament.ctx.parentTournamentName },
+		]);
+	}
+
+	return splitTournamentName(
+		tournament.ctx.name,
+		tournament.ctx.organization?.series ?? [],
+	);
+}
+
 const STAGE_TYPE_TO_SHORT_CODE: Record<
 	Tables["TournamentStage"]["type"],
 	string