Mayhem Night Trail
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Event overview
- 25K
- 10 Mile
- 5 Mile
The Mayhem Night Trail takes place Saturday, December 6, 2025, at McDowell Mountain Regional Park in Fort McDowell, Arizona. It is a night trail event in the Insomniac Night Series and is held the same day as the McDowell Mountain Frenzy day races. Runners share sections of the competitive track trails; finishing a distance in both events on the same day qualifies for a Double Down medal. Registration closes Monday, December 1.
Course and logistics
Courses run on the park's competitive track single-track trails with winding sections and short steep climbs and drops. Key stats published for each distance include: 25K - 15.2 miles, 1,341 ft total elevation gain, max elevation 1,827 ft, time limit 6 hours (11:00pm overall cutoff); 10 Mile - 10 miles, 800 ft gain, max elevation 1,783 ft, time limit about 5.5 hours; 5 Mile - 5.2 miles, 500 ft gain.
There will be one full remote aid station (Gate Aid) plus a water-only station passed on each loop; aid station supplies include water, ice, electrolyte drink, snacks, fruit, pb&j, bean rollups, and hot food options. Crews are allowed at the start/finish only; pacers are not allowed. A drop bag area will be available at the start/finish. Courses are marked with orange ribbon with black polka dots, reflective medallions, laminated signs, and blue-and-white checkerboard flagging for wrong-way trails. MedStar Solutions medical staff will be based at the start/finish. The park charges a $7 entry fee per vehicle. The event is cupless; reusable cups will be available for purchase. Race perks include chip timing, finish line photo, finisher award, and live split tracking. Visit the organization's website for the most recent information.