Route 66 Ultrarun
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Route 66 UltraRun
The Route 66 UltraRun takes place on November 14, 2026 on Historic Route 66 in Arizona. The event is presented as a Certified Route 66 Centennial Event and is the fifth annual running of the race.
Distances offered:
- 140-mile Seligman to Topock66
- 100-mile CenturyRun Peach Springs to Topock66
Both races traverse expansive valleys, pinon pine forests, rugged mountains, desert landscapes, and marshes and pass multiple Americana landmarks. The event references local history including the 1928 Bunion Derby, Dust Bowl migration, the midcentury rise and decline of family road trips, and the later grassroots efforts that led to recognition of Historic Route 66.
Time limits and cutoffs are specified: entrants have 60 hours to complete the 140-mile race and 48 hours for the CenturyRun; there are no intermediate cutoffs. Crewed Runners must cover all miles on their own feet with support from crew or pacers. Crew limits are a minimum of two and a maximum of four for the 140-mile race, and a maximum of two for the CenturyRun; two Crewed Runners may share a crew with prior approval if they remain together for the entire race.
Relay teams may enter both distances. Relay team sizes: three to six people for the 140-mile race, and three, four, or five people for the CenturyRun. Finishers receive a colored enamel medal and a unique finisher shirt featuring original centennial artwork. Registration closes October 1 at 11:59 PM MT. Visit the organization's website for the most recent information.