Leadville Trail Marathon & Heavy Half


Jun 17 2023

Leadville Trail Marathon & Heavy Half

Run through the historic mining district’s challenging old mining roads and trails, and hit a high of 13,185 feet at Mosquito Pass during the Life Time Leadville Trail Marathon and Heavy Half presented by La Sportiva.

The Leadville Trail Marathon is 26.2 miles of out-and-back dirt roads and single track that takes you through the historic mining district on the east side of Leadville. The Heavy Half consists of 15.46 miles along the same path as the marathon minus the Ball Mountain section. The course is primarily on old mining roads and trails, topping out at 13,185 feet at Mosquito Pass. This is the HIGHEST continuous pass in the country and the highest trail Marathon in the USA! There is a chance you’ll see snow on the course. The courses will be well marked with fluorescent pink-and-black striped ribbon and flour arrows on the ground.

Weather – remember that you will be racing in a high-alpine environment with the possibility of extreme weather. If there is thunder or lightning, seek lower elevation quickly.

Trail Marathon Course Info: 

  • Distance: 26.4 Miles
  • Elevation Gain: 6,125′
  • High Point: 13,186′

Route map for Leadville Marathon by Michael Melley on plotaroute.com

Heavy Half Course Info:

  • Distance: 15.4 Miles
  • Elevation Gain: 3,428′
  • High Point: 13,186′

Route map for Leadville Heavy Half by Michael Melley on plotaroute.com

Check out the 3D interactive map from OnX Backcountry maps below:


Jun 17 2023


7:00 AM - 3:30 PM


110 - 130


Leadville, CO
Leadville, CO
Leadville Race Series


Leadville Race Series
(719) 219-9350

The Leadville Race Series started with 45 runners in 1983 and now stretches across three months, and hosts thousands of racers on foot and in the saddle. Owned and produced by Life Time.

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