diff --git a/expo/MCTS.py b/expo/MCTS.py
index 4090331cd..360baac8d 100644
--- a/expo/MCTS.py
+++ b/expo/MCTS.py
@@ -279,7 +279,8 @@ class MCTS:
 
     def best_path(self, root: Node):
         best_child = root
-        best_score = 0
+        global_best_score = root.normalized_reward["test_score"]
+        dev_best_score = root.normalized_reward["dev_score"]
 
         def bfs(node: Node, best_score, best_child: Node, split):
             assert split in ["test_score", "dev_score"]
@@ -294,10 +295,10 @@ class MCTS:
                 best_score, best_child = bfs(child, best_score, best_child, split)
             return best_score, best_child
 
-        _, best_child = bfs(root, best_score, best_child, "test_score")
-        _, dev_best_child = bfs(root, best_score, best_child, "dev_score")
+        _, global_best_child = bfs(root, global_best_score, best_child, "test_score")
+        _, dev_best_child = bfs(root, dev_best_score, best_child, "dev_score")
 
-        return {"dev_best": dev_best_child, "global_best": best_child}
+        return {"dev_best": dev_best_child, "global_best": global_best_child}
 
     def get_num_simulations(self):
         return self.root_node.visited