2026 edition
Entry options are not yet confirmed for this edition. Check the organiser before making plans.
Modelled energy-cost change 8.9% versus flat · net elevation -0 m
Decision summary
Lower than 27% of comparable mapped races
30:00:00 total limit divided by distance. Check gun/chip timing and intermediate limits; allow time for stops.
Historical race-date favourability, not a forecast
Stored GPS route
Quick answers
raceindex.org has a GPS course file for Leadville Trail 100 Run Ultramarathon, so runners can inspect the route line on the map. Elevation charts and ascent figures appear only when that file includes usable elevation data.
The Leadville Trail 100 Run Ultramarathon route has 4,444 m of ascent, 4,445 m of descent and an estimated 8.9% grade-adjusted pace penalty versus a flat route.
The Leadville Trail 100 Run Ultramarathon route starts at Corner of 6th St & Harrison, Leadville, Colorado and finishes at Corner of 6th St & Harrison, Leadville, Colorado. Underfoot, expect mostly forest trail with some mountain roads. It passes Hope Pass, Twin Lakes and Winfield turnaround. out-and-back to the Winfield turnaround.
11.
Its normalised GAP factor is 8.9% slower than a flat course, with about 4444 m of total ascent.