The Leadville Trail Marathon & Heavy Half Marathon, scheduled for June 28, 2025, challenges participants with an out-and-back course through the historic mining district of Leadville, Colorado. The trail marathon covers 26.4 miles with an elevation gain of 6,167 feet, while the heavy half marathon spans 15.46 miles with an elevation gain of 3,421 feet. The course tops out at 13,185 feet at Mosquito Pass, the highest point of any Leadville Race Series event. Both races offer scenic views, technical terrain, and an opportunity to race at high altitude.
Race Date:
28 June, 2025
The Leadville Heavy Half Marathon, taking place on June 28, 2025, spans 15.46 miles with an elevation gain of 1,043 meters, offering a rewarding challenge for trail enthusiasts. This high-altitude race includes a climb to 13,185 feet at Mosquito Pass, promising stunning views and a sense of accomplishment.
Weather based on historical averages.
The Leadville Heavy Half Marathon, taking place on June 28, 2025, spans 15.46 miles with an elevation gain of 1,043 meters, offering a rewarding challenge for trail enthusiasts. This high-altitude race includes a climb to 13,185 feet at Mosquito Pass, promising stunning views and a sense of accomplishment.
The Leadville Heavy Half Marathon is 21km long.
The Leadville Heavy Half Marathon takes place in Leadville, Colorado, USA.
The Leadville Heavy Half Marathon elevation gain is 1043 meters, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Leadville Heavy Half Marathon, taking place on June 28, 2025, spans 15.46 miles with an elevation gain of 1,043 meters, offering a rewarding challenge for trail enthusiasts. This high-altitude race includes a climb to 13,185 feet at Mosquito Pass, promising stunning views and a sense of accomplishment.
The Leadville Heavy Half Marathon is 21km long.
The Leadville Heavy Half Marathon takes place in Leadville, Colorado, USA.
The Leadville Heavy Half Marathon elevation gain is 1043 meters, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
Running
Nature
Relay
Altitude
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Leadville Trail Marathon & Heavy Half or Life Time, Inc. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Leadville Trail Marathon & Heavy Half website.