diff --git a/game-server/app/services/ladderService.ts b/game-server/app/services/ladderService.ts
index d57baa87c..3ca9c350d 100644
--- a/game-server/app/services/ladderService.ts
+++ b/game-server/app/services/ladderService.ts
@@ -169,7 +169,7 @@ function randomRank(isBefore: boolean, myRank: number, range: number, len: numbe
         if(rand) {
             let ratio = isBefore? -1: 1;
             let rank = myRank + ratio * rand;
-            if( rank > 3001) rank = 3001;
+            if( rank > 3001) rank = 3002;
             arr.push(rank);
         }
     }
diff --git a/shared/resource/jsons/dic_zyz_ladder_difficultRatio.json b/shared/resource/jsons/dic_zyz_ladder_difficultRatio.json
index 10a2fc71c..ffe31543a 100644
--- a/shared/resource/jsons/dic_zyz_ladder_difficultRatio.json
+++ b/shared/resource/jsons/dic_zyz_ladder_difficultRatio.json
@@ -36010,5 +36010,17 @@
         "randomFailReward": "31001&500&1|31002&20&1",
         "onceReward": "31002&100",
         "ce": 7477700
+    },
+    {
+        "id": 3002,
+        "rank": 3002,
+        "level": 20,
+        "gkId": "73001&",
+        "head": 11201,
+        "spine": 11401,
+        "randomWinReward": "31001&1000&1|31002&100&1",
+        "randomFailReward": "31001&500&1|31002&20&1",
+        "onceReward": "31002&100",
+        "ce": 7477700
     }
 ]
\ No newline at end of file