From 0a6b4614feaf1f63365f15bd053a1b506d265e04 Mon Sep 17 00:00:00 2001
From: Laurent <laurent@staxriver.com>
Date: Mon, 28 Jul 2025 10:26:44 +0200
Subject: [PATCH] performance improvement

---
 tournaments/models/round.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tournaments/models/round.py b/tournaments/models/round.py
index d4d773e..1f5d43a 100644
--- a/tournaments/models/round.py
+++ b/tournaments/models/round.py
@@ -55,8 +55,10 @@ class Round(TournamentSubModel):
         return name
 
     def ranking_matches(self, hide_empty_matches):
+
+        children_with_matches = self.children.prefetch_related('matches')
         matches = []
-        for child in self.children.all():
+        for child in children_with_matches:
 
             child_matches = child.matches.all()
             if hide_empty_matches: