FIT Analyzer
Coaching Tool
Athlete Name
Reference HR 1 (bpm)
Reference HR 2 (bpm)
Drop .fit files here
Supports Garmin & COROS · Grade Adjusted Pace · Filtered HR · Workout Detection
Processed entirely in your browser — nothing uploaded
Files
Results
| Date | Athlete | Dist (mi) | Duration | Avg HR | Avg GAP | GAP@125 | GAP@150 | Decoupling | Aero Eff. | HR Drift | Workout | Status |
|---|
Pace: derived from distance accumulator — fixes Garmin speed field miscalibration. |
GAP: grade adjusted pace via Minetti curve. |
HR Filtering: first 10 min, last 3 min, HR changing >0.2 bpm/sec excluded. |
Workout: shape-based — pace relative to warmup baseline. Stops <55s ignored. |
Decoupling: <5% efficient · 5-8% moderate · >8% high drift.