Cahuilla Rez Ultra
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Cahuilla Rez Ultra
Cahuilla Rez Ultra is a multi-distance running event held on October 17, 2026, 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 501c3 non-profit.
Distances offered
- 100 Miler
- 24 hour fixed-time race
- 12 hour fixed-time race
- 6 hour fixed-time race
- Half Marathon
- Tribal Member 5k
Most races use a runnable 2-mile loop on double-track dirt road with about 170 feet of gain per loop. The 100 mile course accumulates roughly 8,500 feet of elevation gain and runs on the same loop as the timed events. The half marathon follows reservation roads with about 1,500 feet of climb and four aid stations at miles 4.5, 6, 7.5 and 10 offering basic aid.
On-course support includes a staffed aid station at the softball field with hot and cold foods and non-porta-potty bathrooms. RV parking is allowed at no extra cost but limited to 20 spots; tent and car camping are available at the softball field and adjacent dirt lot. Half marathon entrants do not have overnight camping options to preserve space for timed runners.
Race rules for 2026 note that official results are limited to the distance completed in the registered race, mid-race category changes are not permitted, and the 100 mile race has a 32 hour cutoff. Shirts and medals are provided to participants; handcrafted awards and custom buckles are given to top finishers and 100 mile finishers respectively. Visit the organization's website for the most recent information.
