Cahuilla Rez Ultra

Cahuilla Rez Ultra : Anza, CA

Cahuilla Rez Ultra is a multi-distance running event on the Cahuilla Indian Reservation in Anza, California. The event was postponed from Oct 17, 2026 to Nov 14, 2026. It serves as a fundraiser for the tribe's Youth and Family Programming and offers a culturally educational experience on mountain desert terrain.

The primary course 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 gain over 100 miles. Aid is provided at the softball field with hot and cold real foods and non-porta-potty bathrooms. Participants may camp on the softball field; RV parking is limited to 20 spots and car camping is available in an adjacent dirt lot. Half Marathon entrants are not given overnight camping to conserve space for 24-hour participants. The Cahuilla Casino Hotel is located near the race site and may have availability.

A 2026 rule change sets official results for the fixed-time events to the mileage completed within each race period. Mid-race changes between races are not allowed. The 100-mile race uses the same 2-mile loop and has a 32-hour cutoff; finishers of the 100-mile race receive a custom buckle.

Organizer Red Road Racing is a registered 501c3 nonprofit. Remaining funds after event costs go to the Cahuilla Band of Indians Youth and Family Committee.

Distances: Visit the organization's website for the most recent information.

• 100 Miler 100 miles on a 2-mile loop
• 24hr fixed-time on the 2-mile loop
• 12hr fixed-time on the 2-mile loop
• 6hr fixed-time on the 2-mile loop
• Half Marathon 13 miles on reservation roads
• Tribal Member 5k 5 kilometers on reservation

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