Marsh Madness

  • Date Fri 7th August 2026 - Sat 8th August 2026
  • Time 6:00AM EDT
  • Location South Rockwood, Michigan
  • Price Free
  • Races 1 race

Event summary

Get ready for an exhilarating experience at Marsh Madness, a thrilling 32-hour ultra-marathon taking place from August 7th to August 8th, 2026, in the stunning South Rockwood, Monroe area. Set against the picturesque backdrop of the Point Mouillee State Game Area, where the Huron River, Detroit River, and Lake Erie converge, participants will enjoy breathtaking views of Ontario and Ohio across the water while navigating this unique course.

With a maximum of 50 runners, this free "fat ass" race invites you to embrace the challenge as you tackle an 8-mile loop during the day and a 5-mile loop at night. Expect to run on a mix of 80% gravel and 20% asphalt, with an elevation gain of just 69 feet per loop. The race allows for crew support, pacers, and even poles, ensuring you have everything you need for an unforgettable adventure. Remember, there are no cut-off times, so take in the beautiful scenery and savor the sense of accomplishment that comes with completing this extraordinary event. Join us for a unique running experience where you pack it in and pack it outβ€”Marsh Madness awaits!

Organiser's Description

Marsh Madness is a 32-hour ultra-marathon on August 7th, 2026.

Free fat ass race run on the dikes at Point Mouillee State Game Area, where the Huron River, Detroit River, and Lake Erie converge. Views of Ontario and Ohio across the water await. On the western shores of Lake Erie, Pointe Mouillee State Game Area is one of the most respected waterfowl locations in Michigan. Consisting of 4,040 acres, it is one of the largest freshwater marsh restoration projects in the world. You may see an eagle or a random guy posing with a fish for his Tinder photo.



50 runners max.

You supply all of your own aid and nutrition.

Crew, pacers, and poles welcome.

Elevation gain is 69 feet per loop 80% gravel, 20% asphalt.

Zero water crossings.

Temps should be in 80s. Access to your vehicle every 8 miles.



8-mile loop during the day. 5-mile loop between the hits of 11 pm and 6 am.

32 hours to complete, with the caveat that we can not run the dike between 11 pm and 6 am. A nighttime course is planned. Start time 6 am Aug 1st, finish time 2 pm Aug 8th.



No cut-off times.

It is free, so there are no awards other than the beautiful scenery and the sense of accomplishment.

No garbage cans.

Pack it in, pack it out.

No porta-potties.

We will meet at the race start 30 minutes prior to the race, to sign in.

Races

  • Marsh Madness

    Fri 7th August 2026 (6:00AM EDT)

    Free

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Location

South Rockwood, South Rockwood, 48179, MI, United States

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