Mayhem Night Trail
- Date
- Dec 5, 2026
- First start
- 5:00 pm
- Distances
- 25K · 10 Mile · 5 Mile
- Time limit
- 6 Hours (11:00pm Overall Cutoff)
- Elevation gain
- 1,341 feet
Conquer the challenging trails of McDowell Mountain Regional Park under the cover of darkness at the Mayhem Night Trail. Experience the thrill of navigating through the desert landscape illuminated only by your headlamp and the moonlight, as you push your limits across distances perfect for every trail running enthusiast.
What's included
- Finish Line Photo
- Copy of Chip timed race results
- Well stocked aid station
- Finisher award by Aravaipa Artworx
Good to know
McDowell Mountain Regional Park 16300 McDowell Mountain Park Dr Fort McDowell, AZ 85264
Our start/finish line is based out of the Competitive Track Area which is on your left hand side just beyond the Ranger Station at the entrance of the park.
Expect cooler conditions during the evening with temperatures typically in the 60’s and low’s that could dip into the 40’s as the night progresses. Please be prepared for “cold” Phoenix conditions during the night. We will have plenty of ice and water but highly recommend that you bring clothing that keeps you warm.
The race courses will be well marked with orange plastic ribbons with black polka dots and reflective medallions. Trail junctions and turns will be well marked with laminated signs. In addition, blue & white checkerboard plastic flagging will be hung to designate non-race or “WRONG WAY” trails. All runners are responsible for understanding the layout of the course. Please familiarize yourself with the course maps on
MedStar Solutions Race Day Number: 480-269-4126
Remember the park now charges a $10 park entry fee per vehicle (as of 1/1/26). Please arrive early and have correct change (cash) or card available on race evening for a smooth entry process. Carpool to save!
Pick your distance
The numbers for each course, straight from the race page. Compare them side by side below.
- Date
- Saturday, December 5, 2026
- Start Time
- 5:00 pm
- Time Limit
- 6 Hours (11:00pm Overall Cutoff)
- Total Elevation Gain
- 1,341 feet
Compare the distances
| 25 KM | 10 Mile | 5 Mile | |
|---|---|---|---|
| Date | Saturday, December 5, 2026 | – | – |
| Start Time | 5:00 pm | – | – |
| Time Limit | 6 Hours (11:00pm Overall Cutoff) | – | – |
| Total Elevation Gain | 1,341 feet | 800 feet | 500 feet |
| Distance | – | 5.2 Miles | – |
Course & location
McDowell Mountain Regional Park, Fountain Hills, AZ
Entry fees
Prices go up as race day gets closer; register early.
| Until 5/31 | Until 9/30 | Until 11/30 | Race Week | |
|---|---|---|---|---|
| 5 Mile | $45 | $50 | $55 | $60 |
| 10 Mile | $60 | $70 | $80 | $90 |
| 25 KM | $80 | $90 | $100 | $110 |
Prices don't include tax or registration-platform fees.
