WILL TO RUN APP

Your trail running metrics are wrong. We fixed them.

Every running app tracks your pace, distance, and elevation. None of them know what's under your feet.

 WillToRun is the first platform that automatically detects the terrain you ran on — pavement, dirt road, technical singletrack, alpine scramble — and adjusts every metric accordingly. Because a 10:00 mile on rocky trail is not the same as a 10:00 mile on the road.

 335+ billion geospatial data points powering every run.

WHY WE BUILT THE WILL TO RUN APP

Trail and ultra runners have been underserved by running technology. Today's platforms treat every surface the same. They'll tell you your pace slowed on a climb, but they won't tell you it slowed because you were scrambling over rocks at 10,000 feet on unmapped singletrack.

We built WillToRun because we believe trail runners deserve metrics that reflect what they actually do — not watered-down road running analytics applied to the mountains.

The result: a coaching platform that understands the difference between a fire road and a ridgeline, between hard-packed gravel and a boulder field. Every workout, every race, every prediction — adjusted for the terrain you actually ran.

Key Differentiators

Terrain-Aware Fitness Tracking & Analysis

 WillToRun connects to your Strava account and automatically analyzes every run using massive geospatial datasets spanning satellite imagery, airborne LiDAR, and trail-level surface mapping. For each workout, we identify the terrain details and compute adjusted metrics that reflect the true difficulty of your effort.

Race Prediction & Planning

 Upload a GPX file for any race course and WillToRun will:

  • Analyze the elevation profile and terrain surface across the entire course

  • Predict your finish time based on your personal race history, adjusted for the specific grade and terrain of that course

  • Build section-by-section race splits with per-segment terrain adjustments, pace deterioration modeling, and aid station planning

  • Visualize the course with an interactive elevation and terrain profile

How to Get Started

Getting started takes less than two minutes.

1. Create an Account: Sign up at app.willtorun.com

2. Connect Your Strava Profile:

Link your Strava account with one click. WillToRun uses read-only access and never modifies your Strava data.

3. Your Data, Terrain-Mapped Automatically

WillToRun automatically loads one year of historical activities from Strava. Every run is mapped against our terrain database, and your metrics are adjusted for the surface you ran on. Your TerraScore, TerraPace, and TerraPower are computed within minutes.

4. Predict and Plan Your Next Race

In the Racing tab, flag previous races you've run to build your personal race model. Upload a GPX file for any upcoming course and get a terrain-adjusted finish time prediction, interactive course visualization, and mile-by-mile race splits — all calibrated to your fitness and the specific terrain of that course.

 
 

Your terrain. Your metrics. Your race.

WillToRun analyzes your runs against 335+ billion data points spanning satellite imagery, airborne LiDAR, and trail-level surface mapping to deliver terrain-aware coaching no other platform can match.