Mayhem Night Trail
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Event details
The Mayhem Night Trail is a night trail running event at McDowell Mountain Regional Park in Fort McDowell, AZ on Saturday, December 6, 2025. It is part of the Insomniac Night Series and the Fall Sunset Series, and it is held the same day as the McDowell Mountain Frenzy (Desert Runner Trail Series).
- 25K
- 10 Mile
- 5 Mile
Course, aid and logistics
The courses stay within the park’s competitive track trails, featuring winding single-track and short steep climbs and drops. Courses are marked with orange plastic ribbons with black polka dots, reflective medallions, laminated signs at junctions, and blue-and-white checkerboard flagging for “wrong way” trails.
Aid includes one full remote aid station (Gate Aid) and a water-only station passed on each loop. Aid station supplies listed include water, ice, electrolyte drinks, salty and sweet snacks, fruit, pb&j, bean rollups, and hot food options. Crews are allowed at the start/finish only; pacers are not allowed. A designated drop-bag area is available at the start/finish.
Key course stats by distance: the 25K course is listed as 15.2 miles with 1,341 ft elevation gain and max elevation 1,827 ft (time limit 6 hours); the 10-mile course has 800 ft gain and max elevation 1,783 ft (time limit ~5.5 hours); the 5.2-mile course has 500 ft gain and max elevation 1,827 ft (time limit ~5.5 hours). Additional notes: the park charges a vehicle entry fee, pets are not allowed on-course, camping options are available, and the event is cupless with reusable cups available. Medical staff will be based at the start/finish. Visit the organization's website for the most recent information.