By Limitless LL

Limitless Run Strategy

Post-Ironman · Post-70.3 · Marathon Run Strategy

Upload a GPX running course, enter the athlete age and maximum heart rate, choose the race context, and create a safe run strategy based on fatigue, elevation and heart-rate control.

1. Upload Run Course

GPX supported. The app smooths elevation to reduce GPS noise and creates running segments based on terrain and fatigue context.

Upload GPX run course

Using fallback sample marathon course. Upload a GPX file to replace it.


Sample marathon run course
Demo course
Sample
km
m
m
m
m
run strategy
Run profile · coloured by recommended HR zone

Each section shows the target effort for a sustainable run after bike fatigue or during a standalone marathon.

Z1Z2Z3Z4Z5

2. Athlete, Race Context & Heart Rate Zones

Target run intensityModerate

Use lower intensity after Ironman or when the goal is to run steadily. Use higher intensity only for competitive standalone marathon pacing.

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

3. Run Strategy Scenarios

4. Run Segments

Segments are based on terrain and fatigue. Uphills control heart rate; downhills avoid overstriding and protect the legs.

SegKmElev +/-GradientTypeHR ZoneTarget HRPaceTimeCoach note

5. Coach Summary

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