diff --git a/lm_eval/tasks/leaderboard/bbh_mc/_leaderboard_bbh.yaml b/lm_eval/tasks/leaderboard/bbh_mc/_leaderboard_bbh.yaml
index 9cc10d3968..f31a2e3c8e 100644
--- a/lm_eval/tasks/leaderboard/bbh_mc/_leaderboard_bbh.yaml
+++ b/lm_eval/tasks/leaderboard/bbh_mc/_leaderboard_bbh.yaml
@@ -24,3 +24,7 @@ task:
   - leaderboard_bbh_tracking_shuffled_objects_seven_objects
   - leaderboard_bbh_tracking_shuffled_objects_three_objects
   - leaderboard_bbh_web_of_lies
+aggregate_metric_list:
+  - metric: acc_norm
+    aggregation: mean
+    weight_by_size: true
diff --git a/lm_eval/tasks/leaderboard/gpqa/_leaderboard_gpqa.yaml b/lm_eval/tasks/leaderboard/gpqa/_leaderboard_gpqa.yaml
index 448c14ac48..2708f750c0 100644
--- a/lm_eval/tasks/leaderboard/gpqa/_leaderboard_gpqa.yaml
+++ b/lm_eval/tasks/leaderboard/gpqa/_leaderboard_gpqa.yaml
@@ -3,3 +3,7 @@ task:
   - leaderboard_gpqa_diamond
   - leaderboard_gpqa_extended
   - leaderboard_gpqa_main
+aggregate_metric_list:
+  - metric: acc_norm
+    aggregation: mean
+    weight_by_size: true
diff --git a/lm_eval/tasks/leaderboard/math/_leaderboard_math.yaml b/lm_eval/tasks/leaderboard/math/_leaderboard_math.yaml
index 45cf8f1340..7e7a6cfcf2 100644
--- a/lm_eval/tasks/leaderboard/math/_leaderboard_math.yaml
+++ b/lm_eval/tasks/leaderboard/math/_leaderboard_math.yaml
@@ -7,3 +7,7 @@ task:
   - leaderboard_math_num_theory_hard
   - leaderboard_math_prealgebra_hard
   - leaderboard_math_precalculus_hard
+aggregate_metric_list:
+  - metric: exact_match
+    aggregation: mean
+    weight_by_size: true
diff --git a/lm_eval/tasks/leaderboard/musr/_musr.yaml b/lm_eval/tasks/leaderboard/musr/_musr.yaml
index 060d231aae..accb197f26 100644
--- a/lm_eval/tasks/leaderboard/musr/_musr.yaml
+++ b/lm_eval/tasks/leaderboard/musr/_musr.yaml
@@ -3,3 +3,7 @@ task:
   - leaderboard_musr_murder_mysteries
   - leaderboard_musr_object_placements
   - leaderboard_musr_team_allocation
+aggregate_metric_list:
+  - metric: acc_norm
+    aggregation: mean
+    weight_by_size: true