tri to get dirty


swimgravel biketrail run

Sept. 26, 2021

sprint, olympic, duathlon, aquabike, relay
Middleville, Michigan

The Dirty Mitten

The Inaugural Race is September 26, 2021!

Forget pavement and skinny tires – get ready to ride gravel and run trails! Located in and around Camp Manitou-Lin in Middleville, Michigan, The Dirty Mitten triathlon consists of a calm lake swim, gravel bike ride, and a trail run in both Sprint and Olympic distances along with Duathlon, Aquabike, and Relay options.

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off the shore of Old Lake Barlow


on the gravel roads of Barry County


on the scenic trails of Camp Manitou-Lin


The Dirty Mitten is based out of Camp Manitou-Lin, in Middleville, Michigan, 30 miles south of Grand Rapids. The race begins with a swim in Barlow Lake followed by a bike ride on the gravel roads of Barry County. Finally, challenge yourself with a wooded run on the trails of Camp Manitou-Lin.

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The Dirty Mitten 2021 registration opens 12/14.

2021 registration will open on Monday, 12/14 to 2020 deferred athletes. General registration opens on 12/28.

Get Dirty in 2021