The Breckenridge 100 is an ultra-endurance mountain bike race held annually in mid July in Breckenridge, Colorado.

At the same time the Breck 100 is being held, the organization offer three others options; solo 68 miles, solo 32 miles and a team relay. Initially this race offered just two distance classes, and and no awards were presented to those doing the shorter version, it simply offered an easier alternative for those riders not ready to race the full 100 miles. The race was part of the National Ultra Endurance Series until 2012 and will be again in 2017.

The sprawling course is nestled between three ski resorts and features a distinct cloverleaf format of three loops that each begin and finish in Carter Park, adjacent to historic downtown Breckenridge. The race crosses the Continental Divide of the Americas three times, once at Wheeler Pass at an elevation over 12,400 ft and twice at Boreas Pass at an elevation of 11,492 ft. The course climbs a total of 13,719 feet, and includes backcountry trails, roads, double track, bike paths, and high mountain stream crossings.

Results YearMale WinnerTimeFemale WinnerTime2018Taylor Shelden7:40Larissa Connors9:312017Sam Sweetser9:04Larissa Connors10:102016Bryan Dillon8:29Sari Anderson10:222015Zach Guy8:39Laureen Coffett12:392014Josh Tostado8:46Elizabeth Sampey10:542013Ben Sonntag8:23Sonya Looney9:482012Michael Weiss8:14Amanda Carey10:092011Jeff Schalk8:08Jari Kirkland10:312010Josh Tostado8:23Jari Kirkland9:592009Josh Tostado8:33Eszter Horanyi10:072008Josh Tostado8:14Kelley Cullen10:082007Josh Tostado9:05Monique Merrill10:492006Josh Tostado9:03Karen Masson10:272005Josh Tostado9:13Rebecca Hodgetts11:44

See also Wilderness 101 Mountain Bicycle Race Mohican MTB 100 Shenandoah 100 Lumberjack 100

External links Breckenridge 100 Home Page Summit Daily News coverage of 2005 event Cycling news results of 2005 event Calvin Mulder's race report on Warrior's Society