diff --git a/app/features/tournament-bracket/components/BracketMapListDialog.tsx b/app/features/tournament-bracket/components/BracketMapListDialog.tsx
index bd867278e..38bedfc98 100644
--- a/app/features/tournament-bracket/components/BracketMapListDialog.tsx
+++ b/app/features/tournament-bracket/components/BracketMapListDialog.tsx
@@ -678,10 +678,11 @@ function GlobalMapCountInput({
 				onChange={(e) => onSetCount(Number(e.target.value))}
 				defaultValue={defaultValue}
 			>
-				<option value="1">1</option>
-				<option value="3">3</option>
-				<option value="5">5</option>
-				<option value="7">7</option>
+				{TOURNAMENT.AVAILABLE_BEST_OF.map((count) => (
+					<option key={count} value={count}>
+						{count}
+					</option>
+				))}
 			</select>
 		</div>
 	);
@@ -797,7 +798,7 @@ function RoundMapList({
 			</h3>
 			{editing && includeRoundSpecificSelections ? (
 				<div className="stack xs horizontal">
-					{[1, 3, 5, 7].map((count) => (
+					{TOURNAMENT.AVAILABLE_BEST_OF.map((count) => (
 						<div key={count}>
 							<Label htmlFor={`bo-${count}-${id}`}>Bo{count}</Label>
 							<input
diff --git a/app/features/tournament-bracket/tournament-bracket-schemas.server.ts b/app/features/tournament-bracket/tournament-bracket-schemas.server.ts
index 25578d52e..1e331e732 100644
--- a/app/features/tournament-bracket/tournament-bracket-schemas.server.ts
+++ b/app/features/tournament-bracket/tournament-bracket-schemas.server.ts
@@ -108,7 +108,7 @@ const tournamentRoundMaps = z.object({
 			}),
 		)
 		.nullish(),
-	count: numericEnum([1, 3, 5, 7]),
+	count: numericEnum(TOURNAMENT.AVAILABLE_BEST_OF),
 	type: z.enum(["BEST_OF", "PLAY_ALL"]),
 	pickBan: z.enum(["COUNTERPICK", "BAN_2"]).nullish(),
 });
diff --git a/app/features/tournament/tournament-constants.ts b/app/features/tournament/tournament-constants.ts
index e1acc4a8f..0c7a270c3 100644
--- a/app/features/tournament/tournament-constants.ts
+++ b/app/features/tournament/tournament-constants.ts
@@ -3,7 +3,7 @@ export const TOURNAMENT = {
 	COUNTERPICK_MAPS_PER_MODE: 2,
 	COUNTERPICK_MAX_STAGE_REPEAT: 2,
 	COUNTERPICK_ONE_MODE_TOURNAMENT_MAPS_PER_MODE: 6,
-	AVAILABLE_BEST_OF: [1, 3, 5, 7] as const,
+	AVAILABLE_BEST_OF: [1, 3, 5, 7, 9] as const,
 	ENOUGH_TEAMS_TO_START: 2,
 	MIN_GROUP_SIZE: 3,
 	MAX_GROUP_SIZE: 6,