diff --git a/app/routes/admin.sports-seasons.$id.events.$eventId.bracket.server.ts b/app/routes/admin.sports-seasons.$id.events.$eventId.bracket.server.ts
index b549650..21ae56c 100644
--- a/app/routes/admin.sports-seasons.$id.events.$eventId.bracket.server.ts
+++ b/app/routes/admin.sports-seasons.$id.events.$eventId.bracket.server.ts
@@ -212,7 +212,7 @@ export async function action({ request, params }: Route.ActionArgs) {
   /**
    * Auto-complete a round when every match in it is marked complete.
    * Updates scoringEvents.playoffRound and calls processPlayoffEvent so that
-   * non-bracket eliminations are recorded and probabilities are refreshed.
+   * round placements are recorded and probabilities are refreshed.
    * This replaces the manual "Complete Round" button.
    *
    * skipRecalculate=true because the caller already sent a Discord notification
@@ -552,8 +552,10 @@ export async function action({ request, params }: Route.ActionArgs) {
         };
       }
 
-      // Process playoff event to update participant results
-      await processPlayoffEvent(params.eventId);
+      // Process playoff event to update participant results.
+      // skipRecalculate=true: match winners were already set via set-winner/set-round-winners,
+      // which triggered recalculateAffectedLeagues and Discord per match. No need to re-fire.
+      await processPlayoffEvent(params.eventId, undefined, { skipRecalculate: true });
 
       return {
         success: `${round} completed and placements calculated successfully`,