From 383315d0c3a5b237e2d04b35895c864e150b4649 Mon Sep 17 00:00:00 2001
From: Chris Parsons <438676+chrisparsons83@users.noreply.github.com>
Date: Wed, 1 Apr 2026 00:40:55 -0700
Subject: [PATCH] Auto-eliminate non-group participants on group generation
 (#250)
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When generating groups for a tournament (e.g. FIFA World Cup), any
participants in the sport season who were not assigned to a group are
now automatically marked as eliminated (finalPosition = 0) — the same
result as running "Reprocess Eliminations" manually.

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 ...s-seasons.$id.events.$eventId.bracket.server.ts | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

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 9ff856f..88d3ccd 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
@@ -824,7 +824,19 @@ export async function action({ request, params }: Route.ActionArgs) {
       // Generate the empty knockout bracket structure
       await generateBracketFromTemplate(params.eventId, templateId);
 
-      return { success: "Groups and knockout bracket structure created successfully" };
+      // Eliminate participants from this sport season who are not in any group
+      const allParticipants = await findParticipantsBySportsSeasonId(params.id);
+      let eliminatedCount = 0;
+      for (const participant of allParticipants) {
+        if (!uniqueParticipants.has(participant.id)) {
+          await setParticipantResult(participant.id, params.id, 0);
+          eliminatedCount++;
+        }
+      }
+
+      return {
+        success: `Groups and knockout bracket structure created successfully${eliminatedCount > 0 ? ` (${eliminatedCount} participant(s) not in any group marked as eliminated)` : ""}`,
+      };
     } catch (error) {
       logger.error("Error generating groups:", error);
       return {