The Dirty Mitten Gravel Triathlon
About this race
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!
Pick your distance
Triathlon
The Shorty Triathlon (Sprint)
Swim 750m, Bike 14 Miles, Run 5k
The Shorty Relay - 2 person (Sprint)
Swim 750m, Bike 14 Miles, Run 5k
The Shorty Relay - 3 person (Sprint)
Swim 750m, Bike 14 Miles, Run 5k
The Long One Triathlon (Olympic)
Swim 1500m, Bike 31.9 Miles, Run 10k
The Long One Relay - 2 Person (Olympic)
Swim 1500m, Bike 31.9 Miles, Run 10k
The Long One Relay - 3 Person (Olympic)
Swim 1500m, Bike 31.9 Miles, Run 10k
Duathlon
The Shorty Duathlon (Sprint)
Run 5k, Bike 14 Miles, Run 5k
The Long One Duathlon (Olympic)
Run 5k, Bike 31.9 Miles, Run 10k
Aquabike
The Shorty Aquabike (Sprint)
Swim 750m, Bike 14 Miles
The Long One Aquabike (Olympic)
Swim 1500m, Bike 31.9 Miles
Typical race-day weather
Based on 3 years of Open-Meteo archive data for this event's race dates in Middleville, plus the 3 days either side.
The sun rises at 7:27 AM and sets at 7:43 PM local time (EDT) in Middleville on September 20, 2026 — 12h 15m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
Reviews
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Other races near Middleville
Different organizers, within 40 miles, in the next three months
Bradford White 5K
Run on the Gun Reloaded
Cal Crusher
Spooky Sprint - Grand Rapids
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 7 Middleville events
Spotted something wrong? Tell us and we'll fix it.