Best efforts ladder

What this is

The best efforts ladder is a list of the athlete's top power effort at each standard duration in a chosen window, with the attribution back to the specific activity that produced it. Useful for:

• Identifying which workout produced your current best.
• Spotting whether a recent test broke previous bests at specific durations.
• Reviewing the underlying activity (one click into the activity detail page) when a value looks anomalous.

URL pattern (API): GET /api/athlete/<public_id>/analytics/best-efforts/ with query params: * sport (default bike, can be run). * days (default 90). * sub_sport (optional filter, e.g. outdoor_cycling).

The standard duration ladder

The ladder reports best power at each of these durations:

• Sub-minute: 1, 2, 5, 10, 15, 20, 30, 45 seconds.
• 1 to 10 minutes: 60, 90, 120, 180, 240, 300, 360, 420, 480, 600.
• 12 to 60 minutes: 720, 900, 1200, 1500, 1800, 2400, 3600.
• Long: 5400 (90 min), 7200 (120 min), 10800 (180 min).

If your career has not produced a clean number at a given duration, the row is left out of the response.

What you see per row

For each duration with a result:

• The best power value.
• The activity that produced it (linked by activity ID).
• The date of that activity.

Click through to open the activity detail page and inspect the underlying ride.

How "retired" works

The ladder is window-scoped: by default it shows the best from the last 90 days. Bests outside the window are not shown. This is on purpose:

• A 2-year-old "best 20 min" does not represent your current fitness.
• Shrinking the window pulls the ladder forward in time and shows the current state.
• Widening the window shows your career best in the period.

Sub-sport filtering

The sub_sport filter is useful for bike to separate indoor (trainer) bests from outdoor. Trainer power can be different (typically lower or higher depending on the trainer brand) and a single ladder mixing both can be misleading.

See also: Power curve and career MMP, Activity FIT parser metrics.