The legendary “Race Across The Sky” 100-mile run is where it all started back in 1983. This is it. The race where legends are created and limits are tested. One hundred miles of extreme Colorado Rockies terrain — from elevations of 9,200 to 12,600 feet. You will give the mountain respect, and earn respect from all.

Boundless Endurance is the official coaching partner of The Leadville Race Series. We have successfully trained hundreds of athletes across the finish line at all events in the series. Our team is comprised of the perfect combination of Experience, Education and Passion.

Benefits from our program:

Access to the Boundless Webinar Series, Topics include:

Altitude Training with Coach Jay Friedman MD
Mental Training with Coach and Navy SEAL veteran Ben Davis
Nutrition for Endurance Athletes with Coach Jon Clinthorne PhD

SIGN UP FOR WEBINARS HERE: https://boundless10200.com/events/webinar-series

Program is designed specifically from the demands of the race. % grades of the trails, sequence of course challenges, duration of climbs etc

Two pace charts included from Boundless athlete finishers ('The Finisher' and 'Sub 25 Hour Big Buckle')

Strength workouts designed to keep you injury free and resilient to the elevation gain and loss

Priority access to Boundless Training Camps

Option to upgrade to 1:1 coaching and receive a customized program