Cahuilla Rez Ultra

OCT
17
2026
A multi-format running event on the Cahuilla Indian Reservation in Anza, California, offering fixed-time races, a 100-mile option, a half marathon and a Tribal Member 5k while fundraising for youth and family programs.
Sat 17 Oct 2026
100 miles Half Marathon 5 kilometers

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Cahuilla Rez Ultra

Cahuilla Rez Ultra takes place on the Cahuilla Indian Reservation in Anza, California. The event is a fundraiser for the Cahuilla Band of Indians Youth and Family Programming and features multiple race formats and time-based events.

Distances and formats include:

  • 100 Miler
  • 24hr fixed-time
  • 12hr fixed-time
  • 6hr fixed-time
  • Half Marathon (13 miles)
  • Tribal Member 5k

The primary loop is a runnable 2-mile double-track dirt road with about 170 feet of elevation gain per loop and roughly 8,500 feet of total gain over 100 miles. The half marathon follows reservation roads for a 13-mile tour with about 1,500 feet of climb and has four basic aid stations at miles 4.5, 6, 7.5, and 10. The main aid station at the softball field offers hot foods and standard aid station provisions, plus non-porta-potty bathrooms.

Camping and parking options are offered on site. RV parking is limited to 20 spots on a first come, first served basis. Tent camping is allowed on the softball field and car camping is available in the adjacent dirt lot. Half marathon entrants are not given overnight camping to preserve space for fixed-time participants.

Event rules note no mid-race race changes; fixed-time entrants receive official results limited to the mileage completed in their registered event. 100-mile finishers receive a buckle; buckles ordered by signup timing may be mailed after the race. Visit the organization's website for the most recent information.

100 mi
100 Miler
Half Marathon
Half Marathon
5 km
Tribal Member 5k
6hrs
24hrs
12hrs
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