Distance
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Trail GAP Calculator
Upload a GPX route, set your target grade-adjusted pace, and get realistic race projections with pacing, elevation, and split breakdowns.
Drop your GPX file here
or click to browse
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Grade-adjusted target pace.
Negative: less climbing effort, compensated on flats/descents. Positive: more climbing effort, less compensation later.
Negative: slower start/faster finish. Positive: faster start/slower finish.
Aid Station Waypoints
Add waypoint distances in km. Start and finish are added automatically.
Added at each custom aid station checkpoint.
Elevation
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Estimated Time
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Estimated Pace
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Target GAP
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1 km Average Pace and Elevation Profile
Average pace for each kilometer against terrain profile.
Route Map
Map appears after you upload a GPX file.
Pace Plan
Switch between waypoint segments and per-kilometer splits.
| From | To | Segment (km) | Segment Time | Required Pace | Avg Pace to Waypoint | Cumulative Time | Uphill (m) | Downhill (m) | Action |
|---|---|---|---|---|---|---|---|---|---|
| Upload a GPX and calculate to generate the pace plan. | |||||||||