AI ESTIMATOR — FREE, IN 30 SECONDS
How long will you really take?
We match your profile against hundreds of comparable finishers on the same race. Three scored scenarios, aid-station-by-aid-station breakdown, clickable source profiles.
SOURCES
Not an average — a triangulation.
ITRA
Points and performance index from your latest season.
UTMB Index
Official performance index from UTMB World Series.
Similar profiles
Runners with a comparable profile who already finished this race.
3 SCENARIOS
Optimistic, realistic, conservative.
Three finish windows for the same race. Pick the one that matches your strategy.
IN 30 SECONDS
How it works
Pick your race
UTMB, Maxi-Race, SaintéLyon, or one of our 200+ referenced races.
Enter your level
ITRA score, UTMB Index or B-Trail. Or your latest reference time.
Get your estimate
Three possible times, aid-station breakdown, links to comparable runners.
NOT A REFERENCED RACE?
You just have a GPX track
Personal recon, private event, unlisted course: we estimate your time directly from the GPX file and your level.
FAQ
Is it really free?+
Yes. Magic-link sign-in so we can let you know when we ship updates.
How accurate?+
On referenced races, the estimate usually lands within ±15% of real time — much better than a slope-based formula.
What if my race isn't listed?+
Enter distance + elevation manually. The AI will estimate with less precision (no comparable profiles) but still useful.