Leadville Trail 100 Run

Results: 2026

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

A high-altitude Colorado classic with a 99.7-mile out-and-back course, 13,357 ft of climbing, and a 30-hour limit.

Course & Terrain

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

Key course features to know before comparing this race:

• Hope Pass, near 12,500 ft, crossed in both directions
• Winfield turnaround at the halfway point
• Twin Lakes Village crew area at the foot of Hope Pass
• Turquoise Lake, circled on the 2026 reroute
• Downtown Leadville start and finish at 10,200 ft

The course follows forest trails and mountain roads out from Leadville to Winfield and back. The traditional route crosses the Sugarloaf Mountain and Powerline section between Turquoise Lake and Outward Bound in both directions. The organizer’s packing guide puts its stations at May Queen (12.6 and 87.4), Outward Bound (23.5 and 76.2), Half Pipe (29.3 and 70.3), Twin Lakes (37.9 and 62) and Winfield (50). The course stays above about 9,200 ft, and Hope Pass, near 12,500 ft, is climbed from Twin Lakes on the way out and from Winfield on the way back. In 2026 the Willow Fire closed Hagerman Pass Road, Sugarloaf and Powerline. Runners instead circled Turquoise Lake west from Harrison Avenue and rejoined the usual route at Outward Bound, on a 99.7-mile course with more pavement. The Outward Bound–Winfield section was unchanged.

NOAA’s 1991–2020 normals for Lake County Airport at Leadville give an average August high of 68°F and low of 38°F, with 1.87 inches of rain in the month. The August record low is 23°F. The 4:00 AM start is cold, and afternoon storms are common. In 2021 iRunFar described cool conditions with storms dotting the course in the afternoon before skies cleared by evening. In 2026 the high reached the mid-70s°F under partly cloudy skies, and rain arrived late in the afternoon and was still falling at the finish.

Format & Support (as run)

Why This Race Matters

Leadville first ran in 1983, when Lake County was reeling from the closure of the Climax molybdenum mine. The organizer credits local miner Ken Chlouber with creating the race to bring visitors back to town, and 45 runners started that year. Life Time bought the Leadville race series in 2010, and the run, nicknamed the Race Across the Sky, still starts downtown at 10,200 ft. Leadville is one of the four races Grand Slam of Ultrarunning hopefuls choose three from before the mandatory Wasatch 100. Both course records are recent. David Roche ran 15:12:30 in 2025, improving on the 15:26:34 he ran in 2024 to break Matt Carpenter’s 2005 mark of 15:42:59. Also in 2025, Anne Flower ran 17:58:19 in her 100-mile debut, breaking Ann Trason’s 1994 record of 18:06:24.

Historical benchmark notes in the directory record (verify current records with the linked official sources):

• Men: David Roche, 15:12:30, 2025
• Women: Anne Flower, 17:58:19, 2025

Preparing for a Race Like Leadville Trail 100 Run

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

• Walking strategy for ultramarathons: When and how to walk by terrain, effort and cutoffs.
• Crew and aid-station strategy: Crew tables, aid stops, drop bags and runner preferences.
• Gut training for ultrarunners: A six-week practice sequence for race-day fueling.
• Tapering for ultramarathons: Plan the taper and race week around your own recovery.

Best Fit

• Runners who want a big-field mountain 100 entered by lottery with no qualifying race
• Runners chasing the sub-25-hour big buckle
• Runners who want generous pacer rules, with muling allowed from Twin Lakes inbound
• Grand Slam of Ultrarunning hopefuls

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.

Event FAQs

Related Preparation

• Compare verified US 100-mile races
• Compare this race in the full 2026 calendar
• Open the 100-Mile format guide
• Open the Fixed-Distance format guide
• Compare all race formats
• Use the timed-race pace calculator
• Plan checkpoint arrivals and cutoff buffers
• Print a pace band for your goal time
• Estimate race calories and plan fueling
• Build a crew and drop-bag plan
• Build a race-specific gear checklist