Hope this fixes #3062 , I was thinking on this when commiting [2415], seems I needed a little break ;).

Thank you for reporting

L2_GameServer/java/net/sf/l2j/gameserver/Olympiad.java

@@ -740,7 +740,7 @@ public class Olympiad
 
         for (L2OlympiadGame g : _manager.getOlympiadGames().values())
         {
-        	if (g == null)
+        	if (g == null || g.getPlayers() == null)
         		continue;
         	
         	for(L2PcInstance player : g.getPlayers())