Flagstaff to Grand Canyon Stagecoach Line Ultra
Flagstaff, United States • 19-20 Sep 2026
Flagstaff to Grand Canyon Stagecoach Line Races
The event presents a set of endurance races along the Arizona Trail between Flagstaff and the Grand Canyon. It includes solo and relay options for both running and mountain biking and follows trail terrain north of the San Francisco Peaks.
Distances offered:
- 100 mile solo run
- 55K solo run
- 100 mile mountain bike race
- Relay divisions for the run and bike events
The event is presented by Babbitt Ranches and listed by the Arizona Trail Association. The scheduled race dates are September 19–20, 2026. Registration for the event is open and closes Monday September 14 at midnight. Race manuals for run and bike divisions, course information including driving directions, past results, and event photos are published for participants and volunteers.
There is an associated endurance challenge called the Under the Shadow of the Peaks Endurance Double. To earn the Double, a participant must first finish either the Stagecoach 100 mile solo run or the 55K solo run on September 19–20, then return on October 3 to complete the Flagstaff Marathon, a 26.2 mile race. The 100 mile run and bike events offer finisher buckles for those who complete them. Visit the organization's website for the most recent information.