Desert Solstice
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Event overview
The Desert Solstice takes place on Saturday, Dec 20, 2025 in Phoenix, AZ. The event is held at Central High School on a certified 400-meter all-weather track located at 4500 N 7th St. It serves as a qualifier for the USA 24 Hour national team.
Distances
- 24 hours
- 100 miles
- 100k
- 50 miles
Race format and timing
Laps are recorded by a bib chip timing system and timing data will be submitted for USATF record purposes. The timing chip is on the bib and is required to be worn prominently for the duration of the event. Direction of travel on the track changes every four hours. Runners may leave the track and return, but must return to the same place before continuing and may not leave and return directly by the timing equipment to avoid double counting. An electronic display near the start shows lap count, distance, and race.
Entrants receive results for their 100-mile split if reached, and for the 24-hour event; all entrants are registered for the 24-hour event.
Entry and volunteers
Runners must meet one of the listed qualifying standards for their event category. The entry fee applies to all runners regardless of qualification time. Registration closes on Mon, Dec 15, 2025 at 11:59 PM MT. The event requests volunteers for setup, aid station, timing, and breakdown; volunteer perks include a race shirt or other goody and race credits. Visit the organization's website for the most recent information.
