fix duplicate entries and sort order

app.py

@@ -63,24 +63,31 @@ def refresh_leaderboard():
                 if not is_valid_run(run):
                     continue
 
+                has_data = False
                 for key, value in run.summary.items():
                     if key.startswith("_"):
                         continue
 
+                    has_data = True
+
                     try:
                         uid = int(key)
 
-                        entries[uid] = LeaderboardEntry(
-                            uid=uid,
-                            rank=value["rank"],
-                            model=value["model"],
-                            score=value["score"],
-                            hotkey=value["hotkey"],
-                            previous_day_winner=value["multiday_winner"],
-                        )
+                        if uid not in entries:
+                            entries[uid] = LeaderboardEntry(
+                                uid=uid,
+                                rank=value["rank"],
+                                model=value["model"],
+                                score=value["score"],
+                                hotkey=value["hotkey"],
+                                previous_day_winner=value["multiday_winner"],
+                            )
                     except Exception:
                         continue
 
+                if has_data:
+                    break
+
             leaderboard: list[tuple] = [
                 (entry.rank + 1, entry.uid, entry.model, entry.score, entry.hotkey, entry.previous_day_winner)
                 for entry in sorted(entries.values(), key=lambda entry: entry.rank)