
The Dirty Mitten Gravel Triathlon is a triathlon, aquabike, and duathlon race on September 20, 2026 in Middleville, MI, with entry fees from $59.67 to $169.
From the Organizer
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 athlete's forum to ask questions from those who have already experienced the awesomeness that is The Dirty Mitten!
Events
Weather
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
73°
Typical Low
48°
Chance of Rain
36%
Based on US Climate Normals data from Hastings, 12 mi from the venue.
Host City
City Elevation
756 ft
Nearest Airport
GRR
Gerald R. Ford International Airport · 13 mi
Time Zone
Eastern Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Race Location
Your Next Start Line
Every finish line starts with a single decision. Claim your spot at The Dirty Mitten Gravel Triathlon, put it on the calendar, and turn “someday” into a start date.
59
Days to train
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From Endurance Grid
This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
Swim, bike, run — back to back. The sprint distance makes it far more accessible than most people think. Three sports in one race means three movements to train and race day never gets monotonous.
A swim followed by a bike — a triathlon without the run. Sprint and Olympic distances, often alongside a tri at the same venue.
Run, bike, run. The multi-sport format without the swim. Two disciplines, one race — a great bridge between running and triathlon.
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Plan your trip
Coming from out of town? There's more to Middleville than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.
Plan your trip to MiddlevilleFrequently Asked Questions (FAQs)
The Dirty Mitten Gravel Triathlon
Sep 20, 2026