diff --git a/api/chalicelib/core/performance_event.py b/api/chalicelib/core/performance_event.py
new file mode 100644
index 000000000..d8cb2da6b
--- /dev/null
+++ b/api/chalicelib/core/performance_event.py
@@ -0,0 +1,8 @@
+import schemas
+
+
+def get_col(perf: schemas.PerformanceEventType):
+    return {
+        schemas.PerformanceEventType.location_dom_complete: "dom_building_time",
+        # schemas.PerformanceEventType.location_largest_contentful_paint_time: "timestamp"
+    }.get(perf)