When running interval workouts (12 × 400 m), Strava continues to display my previous “best effort” of 1:35 even though I recorded faster 400 m splits during the activity. It fails to update the “best effort” to reflect my latest and fastest 400 m run, which was 1:25 on lap 12.

Steps to Reproduce

1. Complete a run with interval workouts (e.g. 12 × 400 m).

2. Achieve faster 400 m splits—even multiple laps faster than the displayed best.

3. Upload the activity to Strava.

4. Navigate to the Best Efforts section (Progress tab or activity’s “Best Efforts” details).

5. Observe that the best 400 m time remains unchanged (e.g. stuck at 1:35), despite faster splits recorded (e.g. 1:34, 1:25).

Expected Behavior

Strava should automatically update the “Best Effort” for 400 m to the fastest elapsed time achieved during the run (e.g. 1:25). Best Efforts are designed to track the fastest section of any benchmark distance within an activity

Actual Behavior

• Lap 7 (0.40 km): 1:35

• Lap 11 (400 m): 1:34

• Lap 12 (400 m): 1:25
  Despite these faster times, the “Best Effort” remains 1:35 and is not updated in the activity overview or your overall stats.