Cahuilla Rez Ultra

Cahuilla Rez Ultra

Cahuilla Rez Ultra is a multi-distance running event on the Cahuilla Indian Reservation in Anza, California. The event raises funds for the Cahuilla Band of Indians Youth and Family Committee and is organized by Red Road Racing, a 501(c)(3) nonprofit.

The course for fixed-time events and the 100 mile race is a runnable 2 mile loop on double track dirt road with about 170 feet of elevation gain per loop and roughly 8,500 feet of total climb in 100 miles. The route features subtle rolling hills. Aid is available at the softball field with hot and prepared foods and non-porta-potty bathrooms.

Race options include:

• 100 Miler
• 24-hour timed event
• 12-hour timed event
• 6-hour timed event
• Half Marathon (13 miles on reservation roads)
• Tribal Member 5k

Half marathon runners follow a tour of reservation roads with about 1,500 feet of climb and four basic aid stations at miles 4.5, 6, 7.5 and 10. The 100 mile race has a 32 hour cutoff. New rules for 2026 state no mid-race race changes; timed event entrants receive the mileage achieved within their chosen time limit.

Camping and parking details: RV parking is limited to 20 spots at no extra cost; tent camping is allowed on the softball field and car camping is available nearby. Participants receive pre-race materials and a race shirt; finishers receive medals and top finishers receive handcrafted awards. 100 mile finishers receive custom belt buckles. 5k participants receive a medal but not a shirt.

Registration closes on October 13, 2026. Visit the organization's website for the most recent information.

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