The Dirty Mitten Gravel Triathlon

The Dirty Mitten Gravel Triathlon, held in Middleville, Michigan, is a unique gravel triathlon event recognized as the 2025 Gravel World Championship of the Universe. Based at Camp Manitou-lin, it offers two main race distances: The Shorty (a beginner-friendly sprint) and The Long One (a more challenging Olympic distance). Each distance features multiple event types including triathlon, duathlon, aquabike, and relays for 2 or 3-person teams.

The course combines swimming, gravel biking, and trail running, with average air temperatures around 54-70°F and wetsuit-legal water temperatures near 67°F. The event fosters a welcoming atmosphere for all skill levels and also offers a virtual participation option. Visit the organization's website for the most recent information.