diff --git a/classifier/configs/phase4/p4_convnext_tiny_20pct.json b/classifier/configs/phase4/p4_convnext_tiny_20pct.json
deleted file mode 100644
index dfbec7b..0000000
--- a/classifier/configs/phase4/p4_convnext_tiny_20pct.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "extends": "_base.json",
-  "run_name": "p4_convnext_tiny_20pct",
-  "backbone": "convnext_tiny",
-  "subsample": 0.2
-}
diff --git a/classifier/configs/phase4/p4_efficientnet_b0_20pct.json b/classifier/configs/phase4/p4_efficientnet_b0_20pct.json
deleted file mode 100644
index 5ca57fe..0000000
--- a/classifier/configs/phase4/p4_efficientnet_b0_20pct.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "extends": "_base.json",
-  "run_name": "p4_efficientnet_b0_20pct",
-  "backbone": "efficientnet_b0",
-  "subsample": 0.2
-}
diff --git a/classifier/configs/phase4/p4_resnet50_20pct.json b/classifier/configs/phase4/p4_resnet50_20pct.json
deleted file mode 100644
index 3a5bff5..0000000
--- a/classifier/configs/phase4/p4_resnet50_20pct.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "extends": "_base.json",
-  "run_name": "p4_resnet50_20pct",
-  "backbone": "resnet50",
-  "subsample": 0.2
-}