diff --git a/data_collection/tests/data/sample_run_data.json b/data_collection/tests/data/sample_run_data.json
new file mode 100644
index 0000000..05941a5
--- /dev/null
+++ b/data_collection/tests/data/sample_run_data.json
@@ -0,0 +1,7 @@
+{
+  "epoch_ms": 1719754135123,
+  "monotonic_ns": 98765432198765,
+  "tz_offset_minutes": 60,
+  "retry_tail_p99": 2.37,
+  "band_width": 135.4
+}
\ No newline at end of file