Marsh Madness

AUG
7-8
2026
Marsh Madness is a free 32 hour ultra at Pointe Mouillee State Game Area near South Rockwood, Michigan, limited to 50 runners. Daytime 8 mile loops and a shorter night loop are self supported with vehicle access every 8 miles.
7-8 Aug 2026
8 miles 5 miles

Always double-check with the organizer's website! This page may contain affiliate links.

Marsh Madness

Marsh Madness is a free, self-supported ultra running event held at Pointe Mouillee State Game Area near South Rockwood, Michigan, on August 7, 2026. The event runs for 32 hours and is limited to 50 participants.

The course uses dikes and provides views across the water on the western shore of Lake Erie. The state game area covers 4,040 acres and is a large freshwater marsh restoration site known for waterfowl habitat.

Course details and logistics:

  • Daytime loop: 8 miles
  • Night loop: 5 miles The daytime loop surface is about 80% gravel and 20% asphalt, with roughly 69 feet of elevation gain per loop. There are no water crossings. Vehicles can be accessed approximately every 8 miles. Crew, pacers, and trekking poles are allowed.

Participants must supply all of their own aid and nutrition. There are no porta-potties and no garbage cans on site, so all waste must be carried out. There are no formal awards. The organizer will meet participants at the race start 30 minutes before the event to complete sign in. Visit the organization's website for the most recent information.

8 mi
Marsh Madness
8 mi
Day Loop
5 mi
Night Loop
32-Hour Ultra-Marathon
Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.