Middleville, MI | Sunday, September 20, 2026TriathlonRegistration Open
THE DIRTY MITTEN IS PROUD TO BE THE 2026 GRAVEL WORLD CHAMPIONSHIP OF THE UNIVERSE (yeah, we made that up, but the event is so good we are sticking with it) ! Based out of Camp Manitou-lin in Middleville, MI, The Dirty Mitten offers a beginner friendly sprint option (The Shorty), and a more challenging Olympic (The Long One) course. 9 EVENTS TO CHOOSE FROM : 4 events at each distance: The Shorty (sprintish), The Long One (olympicish), both feature triathlon, aquabike, duathlon and relay... plus you can join us virtually! TO DO : Frederick Meijer Garden & Sculpture Park , John Ball Zoo , Gerald R. Ford Presidential Library & Museum AIRPORT : Gerald R Ford International Airport AIR TEMP (AVG) : 54 F / 70 F WATER TEMP (AVG): 67 F and wetsuit legal We think we are awesome but will admit we are biased. Check out our athletes forum to ask questions from those who have already experienced the awesomeness that is The Dirty Mitten!