Route 66 Ultrarun
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Route 66 UltraRun, November 14, 2026
The Route 66 UltraRun is the 5th annual running event held along Historic Route 66 in Arizona and is a Certified Route 66 Centennial Event. The 2026 program includes two main distances and options for crewed runners and relay teams.
Available distances
- 140 mile Seligman to Topock66
- 100 mile Peach Springs to Topock66
Both courses pass through expansive valleys, pinon pine forests, rugged mountains, desert landscapes, marshes, and sites of Americana along the historic highway. Time limits are 60 hours for the 140 mile race and 48 hours for the 100 mile CenturyRun; there are no intermediate cutoffs.
Crewed runners must cover all miles on their own feet while supported by crew or pacers. Crew size limits are at least two and no more than four for the 140 mile race, and a maximum of two for the CenturyRun. With prior approval, two crewed runners may share one crew if they remain together for the entire race.
Relay teams may consist of three to six members for the 140 mile race and three to five members for the CenturyRun. Teams choose their own leg lengths and transition points and may adjust plans during the event.
Finishers in the crewed, relay, and journey categories who cross the finish line receive a colored enamel finisher medal and a finisher shirt featuring original art created for the centennial. Visit the organization's website for the most recent information.