By Limitless LL

Limitless Trail Strategy

Trail Running Heart Rate Strategy

Upload a trail GPX file, enter the athlete age and maximum heart rate, and create a terrain-based pacing plan using heart-rate zones for climbs, flats and descents.

1. Upload Trail Course

GPX supported. The app applies Garmin-like elevation smoothing to make total ascent more realistic and less affected by GPS noise.

Upload GPX trail course

Using fallback sample trail. Upload a GPX file to replace it.


Sample trail course
Demo course
Sample
km
m
m
m
m
terrain based
Elevation profile · coloured by heart-rate intensity

Each segment shows the recommended HR zone over the mountain profile.

Z1Z2Z3Z4Z5

2. Athlete & Heart Rate Zones

Target trail intensityModerate

Use lower intensity for long technical trail races. Use higher intensity only for short races or competitive efforts.

manual value
average target
weighted by time
min/km
effort risk

3. Trail Effort Scenarios

4. Terrain Segments

The trail is divided by terrain type. Steep climbs use controlled HR caps; descents are used to recover when possible.

SegKmElev +/-GradientTypeHR ZoneTarget HRPaceTimeCoach note

5. Coach Summary

Upload a track or use the sample trail to generate the strategy.
Limitless LL · Trail HR Strategy MVP