Mayhem Night Runs

Maricopa County, Arizona, United States

Dec 5, 2026 - Saturday

10mi, 25k, 8k/5mi

Race Information

Mayhem runners get to experience the competitive track on a cool December night, providing a unique trail experience as you share the trail with 50-mile runners from our day race, Frenzy, on your way to the finish line.

The McDowell Mountain Frenzy also happens at this park in the morning of the same day as Mayhem Night Runs. Finish any distance at both races and receive a unique custom medal for completing our Double Down!

Expect cooler conditions during the evening that could dip as the night progresses. Please be prepared for “cold” Phoenix conditions during the night. There's plenty of ice and water but highly recommend that you bring clothing that keeps you warm.

 Run Pick of the Month: Surf City Marathon

Huntington Beach, CA - Sunday February 7, 2027

Why We Like This Run

  • Breathtaking oceanfront scenery
  • Fast, flat, and Boston-qualifying
  • An incredible post-race beach festival

Lace up and join the tradition at the iconic Surf City Marathon, Half Marathon & 5K in Huntington Beach! Imagine chasing the sunrise alongside crashing Pacific waves, feeling the ocean breeze, and running down the legendary Pacific Coast Highway.

Whether you're chasing a personal record, aiming for a Boston Qualifier, or soaking in the vibrant beach culture, this is your invitation to own the open road and celebrate with an epic oceanfront finish festival.

Register Now

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Race Facts

Race Size: 100 - 500

Elevation: Some Hills

Course Type: Trail

Boston Qualifier: No

Kids Run: No

Where to Stay

Use this map to find hotels and airbnb accommodation near this race location.