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Fixed-DistancePast edition

Leadville Trail 100 Run

A high-altitude Colorado classic with a 99.7-mile out-and-back course, 15,492 ft of climbing, and a 30-hour limit.

This listed edition has ended. It remains available as an archive for course and planning research; check the official website for a newer edition before making travel plans.

Results: 2026

Adrian Macdonald won the Leadville Trail 100 Run in 15:47:23 for his third victory and McKendree Hickory won the women's race in 19:39:12, as 387 of 656 starters finished inside the 30-hour cutoff.

2026 selected results as published by the linked source
CategoryNameResult
MenAdrian Macdonald15:47:23
WomenMcKendree Hickory (USA)19:39:12

387 of 656 starters finished.

The 2026 course was rerouted around Turquoise Lake because the Willow Fire closed Hagerman Pass Road, Sugarloaf and Powerline, so the winning times are not comparable to times set on the traditional course.

Source: iRunFar — 2026 Leadville 100 Mile results. Checked September 14, 2026.

Next edition: August 21, 2027. The lottery opens December 1-15, 2026, with results announced in January 2027.

Event Overview

Listed edition overview
DateAug 22-23, 2026
LocationLeadville, Colorado, USA
FormatFixed-Distance
TerrainMountain
RegionNorth America
Distance / duration99.7 mi
State / areaColorado (CO)
Course modelOut-and-back
Edition noteThe 2026 race was run after regional wildfire impacts; the organizer had confirmed it would go ahead.
Elevation gain15,492 ft
Cutoff30 hours
HighlightsHope Pass, Race Across the Sky

Course & Terrain

High-altitude out-and-back on forest trails and mountain roads from Leadville, reaching approximately 12,526 ft.

Why This Race Matters

Leadville Trail 100 Run is a useful reference point for runners comparing long fixed-distance ultras that still unfold over multiple days. Its format, terrain, and support model shape the kind of preparation required: not just fitness, but pacing discipline, nutrition planning, foot care, and the ability to make good decisions under fatigue.

Preparing for a Race Like Leadville Trail 100 Run

The 100-mile race guide covers the format as a whole. These guides go deeper:

Planning Notes

  • Treat intermediate cutoff gates as part of the course. Build enough margin for aid stops and late-race slowdown, and verify every current gate in the official rules.
  • Train for terrain-specific fatigue. Technical trails and mountain courses demand downhill durability, hiking efficiency, and reliable night lighting.
  • The directory does not mark this as having simpler logistics. Confirm qualification, terrain, support, registration, medical, and withdrawal requirements before planning around it.

Verification & Sources

Verification scope: the listed edition's date, location, format, and available logistics were checked against the event-specific official sources below during the directory review dated August 18, 2026. Organizers can revise details after review.

  1. Official Leadville Trail 100 Run page — https://www.leadvilleraceseries.com/run/leadvilletrail100run/
  2. Multiday Running event directory review scope: August 18, 2026.