Mile Madness Endurance Run

Auburn, United States • 25-28 Sep 2026

Event overview

Mile Madness Ultra Endurance Runs is a multi-day looped trail event planned for late September 2026 in Auburn, California (permit pending). The event uses a compact 1-mile loop, mainly a paved bike path, that passes a pond, shaded paths, and grassy areas suitable for on-site camping. The organizers report past participation ranging from ages 10 to 82 and participant gender split of about 52.8% male and 47.2% female. Historical fields cited include 115 runners in 2024 and 140 in 2025, with a projected 200-250 for 2026. While the final permit is pending, registrations are listed as refundable.

Race options and logistics

Race options include multiple timed events on the looped course, with long cutoffs and aid access. Events listed include:

  • 72 Hour Run
  • 72 Hour Team Relay
  • 48 Hour Run
  • 48 Hour Team Relay
  • 100 Mile Race
  • 24 Hour Run
  • 12 Hour Run
  • 6 Hour Glow Run

On-course support and amenities described include a fully stocked aid station with meals and electrolytes, on-site massage therapists, family cheer zones, food trucks, portable restrooms, and on-site ultra-camping. All registered runners are to receive a race shirt or jacket; packable puffy jackets are planned with size requests limited after 09/01/2026. The event lists buckle awards for mileage milestones and notes a 100% rollover policy up to 24 hours before race start. The organizers support the Run Free Foundation for at-risk youth. Visit the organization's website for the most recent information.

Race information

72 hr
72 Hour Run
72 hr
72 Hour Team Relay
48 hr
48 Hour Team Relay
48 hr
48 Hour Run
24 hr
24 Hour Run
100 mi
100 Mile Race
12 hr
12 Hour Run
6 hr
6 Hour Glow Run
1 Mile Loop
Visit the organization's website for the most recent information.
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