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Leadville Trail 100 MTB

~104mi / 3,600m high-altitude MTB race in Colorado (the 'Race Across the Sky'). Start/finish Leadville at 3,100m, out-and-back to Columbine Mine at 3,800m. Sub-9hr = big buckle, 12hr cutoff. Altitude, not FTP, is the limiter. Date approximate to mid-August.

15 August 2026Leadville, Colorado, USA167km
Get your Leadville Trail 100 MTB plan

~104mi / 3,600m high-altitude MTB race in Colorado (the 'Race Across the Sky'). Start/finish Leadville at 3,100m, out-and-back to Columbine Mine at 3,800m. Sub-9hr = big buckle, 12hr cutoff. Altitude, not FTP, is the limiter. Date approximate to mid-August.

What makes it hard

  • 3600m of total climbing
  • Technical terrain: fire road, jeep track, gravel, loose high-altitude climbs, hike-a-bike

How BEINA trains you for it

BEINA reads the exact demands of Leadville Trail 100 MTB — mtb marathon, 167km, fire road, jeep track, gravel, loose high-altitude climbs, hike-a-bike — and builds your plan around them. Race-day predictions and AI coaching remove the guesswork so you arrive ready.