diff --git a/gamedata.json b/gamedata.json
index 287ab5c..58cedd7 100644
--- a/gamedata.json
+++ b/gamedata.json
@@ -551932,7 +551932,9 @@
 	]
   }
  ],
- "arena":[
+ "arena":{
+	"arena_exp":[1,2,4,8,12,18],
+	"arena_list":[
 		{"arena_id":1,"arena_type":"JUMPING","entry_cost":1000,"race_every":60,"slots":6,"timeout":2},
 		{"arena_id":2,"arena_type":"RACING","entry_cost":1000,"race_every":60,"slots":6,"timeout":2},
 		{"arena_id":3,"arena_type":"CONFORMATION","entry_cost":1000,"race_every":60,"slots":5,"timeout":2},
@@ -551944,7 +551946,8 @@
 		{"arena_id":9,"arena_type":"DRAFT","entry_cost":10000,"race_every":60,"slots":6,"timeout":2},
 		{"arena_id":10,"arena_type":"BEGINNERJUMPING","entry_cost":500,"race_every":60,"slots":6,"timeout":2},
 		{"arena_id":11,"arena_type":"BEGINNERJUMPING","entry_cost":500,"race_every":60,"slots":6,"timeout":2}
-  ],
+	]
+ },
  "leaser":[
 		{
 			"lease_id":1,