diff --git a/guildwars2/gamedata.json b/guildwars2/gamedata.json
index 94f6649..67ef541 100644
--- a/guildwars2/gamedata.json
+++ b/guildwars2/gamedata.json
@@ -1320,6 +1320,31 @@
           }
         ]
       },
+      {
+        "name": "Mount Balrior",
+        "encounters": [
+          {
+            "name": "Greer",
+            "type": "single_achievement",
+            "id": 8454
+          },
+          {
+            "name": "Decima",
+            "type": "single_achievement",
+            "id": 8485
+          },
+          {
+            "name": "Ura",
+            "type": "single_achievement",
+            "id": 8472
+          },
+          {
+            "name": "Undefeated: Mount Balrior",
+            "type": "single_achievement",
+            "id": 8502
+          }
+        ]
+      },
       {
         "name": "Fractals",
         "encounters": [