Route 66 Ultrarun
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Route 66 UltraRun
The Route 66 UltraRun is a long-distance running event held in Arizona that follows the historic Mother Road. The 2026 edition marks the fifth annual occurrence of the race and serves as a certified Route 66 Centennial Event. Participants travel through a variety of landscapes including expansive valleys, pinon pine forests, rugged mountains, desert terrain, and marshes. The course passes iconic Americana and follows the same path taken by historical figures such as the 1928 Bunion Derby runners.
Participants can choose between two primary distances:
- 140 miles: A route starting in Seligman and finishing at Topock66.
- 100 miles: Known as the CenturyRun, this route begins in Peach Springs and ends at Topock66.
The event offers categories for solo crewed runners and relay teams. Solo runners in the 140-mile distance must have a support crew of at least two and no more than four people. For the 100-mile distance, solo runners are permitted a maximum of two crew members. Relay teams for the 140-mile race consist of three to six people, while the 100-mile relay teams can have three, four, or five members. Relay teams manage their own strategy, as there are no predetermined leg lengths or transition points.
The time limit for the 140-mile race is 60 hours, while the 100-mile race has a limit of 48 hours. There are no intermediate cutoffs during either event. All finishers receive an enamel medal and a finisher's shirt featuring original art created for the centennial celebration. Visit the organization's website for the most recent information.