diff --git a/webapp/controller/SeasonController.class.php b/webapp/controller/SeasonController.class.php
index 2fd55d8d..d0980b45 100644
--- a/webapp/controller/SeasonController.class.php
+++ b/webapp/controller/SeasonController.class.php
@@ -136,13 +136,20 @@ class SeasonController extends BaseAuthedController {
             $winTimes = getXVal($seasonBattleData, 'total_win_times', 0);
             $topTenTimes = getXVal($seasonBattleData, 'total_top_ten_times', 0);
             $totalKills = getXVal($seasonBattleData, 'total_kills_times', 0);
+            $temp = $gameTimes-$winTimes ? $gameTimes-$winTimes:0;
+            if (! $temp){
+                $kill_killed = 0;
+            }else{
+                $kill_killed = round($totalKills/$temp,2);
+            }
+
             $currRankSeasonHistory= array(
                     'season_id' => $seasonDb['season_id'],
 //                    'total_kills' => $totalKills,
                     'game_times' => $gameTimes,
                     'win_times' => $winTimes,
                     'top_ten_times' => $topTenTimes,
-                    'kill_killed' => round($totalKills/($gameTimes-$winTimes),2),
+                    'kill_killed' => $kill_killed,
                 );
         }
         if (!$currRankSeasonHistory){