diff --git a/src/Runner/IEcsFixedRunSystem.cs b/src/Runner/IEcsFixedRunSystem.cs
index 313cb50..0b077fa 100644
--- a/src/Runner/IEcsFixedRunSystem.cs
+++ b/src/Runner/IEcsFixedRunSystem.cs
@@ -12,4 +12,12 @@
             foreach (var item in targets) item.FixedRun(systems);
         }
     }
+
+    public static class IEcsFixedRunSystemExtensions
+    {
+        public static void FixedRun(this EcsSystems systems)
+        {
+            systems.GetRunner<IEcsFixedRunSystem>().FixedRun(systems);
+        }
+    }
 }
diff --git a/src/Runner/IEcsLateRunSystem.cs b/src/Runner/IEcsLateRunSystem.cs
index c32b41c..f8a4525 100644
--- a/src/Runner/IEcsLateRunSystem.cs
+++ b/src/Runner/IEcsLateRunSystem.cs
@@ -12,4 +12,12 @@
             foreach (var item in targets) item.LateRun(systems);
         }
     }
+
+    public static class IEcsLateRunSystemExtensions
+    {
+        public static void LateRun(this EcsSystems systems)
+        {
+            systems.GetRunner<IEcsLateRunSystem>().LateRun(systems);
+        }
+    }
 }