Fifth stop in the National Ultra Endurance Series! Welcome to Colorado's premier off-road ultra endurance race, the 8th annual Breckenridge 100. Featuring Solo and Three Person Team Competitions, this incredible course climbs 13,719 feet over its 100 miles and will remind you of what pristine backcountry mountain biking is all about.

So start studying, the test is waiting for you on July 14th! Featuring a sprawling course nestled between 3 ski resorts; participants are treated with a unique combination of beauty and challenge. The distinct cloverleaf loops offer team competitors the opportunity to strategize their efforts and pick which loop each participant will tackle.

Our renowned course architect has linked together an amazing network of backcountry trails, roads, double track and bike paths that will take you beyond your typical boundaries. From start to finish, you will be both pampered and pushed to your limit at the same time. You'll cross the Continental Divide three times, climb 12,000 foot passes over a snow field, and forge high mountain streams while returning to the support and encouragement of staff, friends and teammates who are waiting for you in historic downtown Breckenridge.