Default sorting of leaderboard is by "average_score"

server.py

@@ -753,6 +753,7 @@ class LeaderboardServer:
                     "n-shot",
                     "average_score",
                 ]
+                
                 df_order = [
                     key
                     for key in dict.fromkeys(
@@ -764,13 +765,26 @@ class LeaderboardServer:
                     ).keys()
                     if key in dataframe.columns
                 ]
+                
+                # Sort columns
                 dataframe = dataframe[df_order]
+                
+                # Sort rows
+                if pre_submit:
+                    first_row_with_pre_submit = dataframe.iloc[0]
+                    dataframe = dataframe.iloc[1:].sort_values(by=["average_score"], ascending=False)
+                    dataframe = pd.concat([first_row_with_pre_submit.to_frame().T, dataframe])
+                else:
+                    dataframe = dataframe.sort_values(by=["average_score"], ascending=False)
+                
+                # Rename columns
                 attributes_map_word_to_header = {key: value["abbreviation"] for key, value in self.TASKS_METADATA.items()}
                 attributes_map_word_to_header.update(extra_attributes_map_word_to_header)
                 attributes_map_word_to_header.update(visible_metrics_map_word_to_header)
                 dataframe = dataframe.rename(
                     columns=attributes_map_word_to_header
                 )
+                
                 return dataframe
 
     def fake_tournament(self, new_submission_id, new_model_file):