Take on the toughest, grittiest, gnarliest endurance challenge we could throw together: 5 trail running and MTB events, covering 282.4 miles, all at 10,000+ feet of Rocky Mountain elevation. To conquer the Lead Challenge, you’ll need some lead in your veins.

This event isn’t for the faint of heart. It isn’t even for the “average of heart” or “semi-courageous of heart.” This event is only for the toughest of the tough, those endurance athletes who can look at the epic endeavor ahead — completing all 5 of Leadville’s’ most demanding events — and smile.

Boundless Coaching 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 Dr Justin Ross
Nutrition for Endurance Athletes with Coach Jon Clinthorne PhD

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')

8-12 Hour Pace Chart for LT100 MTB included that you can tape to your top tube on your MTB

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