The Dirty Mitten Gravel Triathlon

Sunday, September 21, 2025 Past event

8:30 AM EDT

Middleville, Michigan

$72.81–$192.24 · 11 races

Ultra

Event summary

Get ready for an exhilarating experience at The Dirty Mitten Gravel Triathlon, happening on Sunday, September 21, 2025, in the picturesque setting of Middleville, Barry! This vibrant event proudly claims the title of the 2025 Gravel World Championship of the Universe (yes, it's that fantastic!). Nestled at Camp Manitou-lin, The Dirty Mitten features two exciting race distances: a beginner-friendly sprint option known as The Shorty and the more challenging Olympic distance called The Long One. Participants can choose from a variety of events, including triathlons, aquabikes, duathlons, and relays, with four events available at each distance. Whether you're a seasoned athlete or just starting your journey, there's something for everyone!

The fun doesn't stop at the race; enjoy the beautiful surroundings with local attractions like the Frederick Meijer Gardens & Sculpture Park, John Ball Zoo, and the Gerald R. Ford Presidential Library & Museum. With average air temperatures ranging from 54°F to 70°F and a comfortable water temperature of 67°F, it’s the perfect day for an adventure! Connect with fellow athletes in the community and prepare for an unforgettable experience at The Dirty Mitten Gravel Triathlon!

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Races

The Shorty Triathlon (Sprint)

Incl. $11.44 Fee & T-Shirt

Swim 750m, Bike 14 Miles, Run 5k

9:00 AM EDT

$160.44

Entries closed
The Shorty Duathlon (Sprint)

Incl. $11.44 Fee & T-Shirt

Run 5k, Bike 14 Miles, Run 5k

9:00 AM EDT

$160.44

Entries closed
The Shorty Aquabike (Sprint)

Incl. $11.44 Fee & T-Shirt

Swim 750m, Bike 14 Miles

9:00 AM EDT

$160.44

Entries closed
The Shorty Relay - 2 person (Sprint)

Incl. $7.57 Fee & T-Shirt

Swim 750m, Bike 14 Miles, Run 5k

9:00 AM EDT

$92.07

Entries closed
The Shorty Relay - 3 person (Sprint)

Incl. $6.48 Fee

Swim 750m, Bike 14 Miles, Run 5k

9:00 AM EDT

$72.81

Entries closed
The Long One Triathlon (Olympic)

Incl. $13.24 Fee & T-Shirt

Swim 1500m, Bike 31.9 Miles, Run 10k

8:30 AM EDT

$192.24

Entries closed
The Long One Duathlon (Olympic)

Incl. $13.24 Fee & T-Shirt

Run 5k, Bike 31.9 Miles, Run 10k

8:30 AM EDT

$192.24

Entries closed
The Long One Aquabike (Olympic)

Incl. $13.24 Fee & T-Shirt

Swim 1500m, Bike 31.9 Miles

8:30 AM EDT

$192.24

Entries closed
The Long One Relay - 2 Person (Olympic)

Incl. $10.12 Fee & T-Shirt

Swim 1500m, Bike 31.9 Miles, Run 10k

8:30 AM EDT

$137.12

Entries closed
The Long One Relay - 3 Person (Olympic)

Incl. $7.58 Fee

Swim 1500m, Bike 31.9 Miles, Run 10k

8:30 AM EDT

$92.25

Entries closed
The Dirty Mitten Virtual
Virtual

Incl. $11.44 Fee & T-Shirt

For those athletes that are unable to race in-person with us, we are pleased to offer a virtual option that runs the entire month of September: The Dirty Mitten Virtual. You pick the distance, the venue and when you are going to do your event. This is an untimed, on your own effort.

8:30 AM EDT

$160.44

Entries closed

Organiser's description

THE DIRTY MITTEN IS PROUD TO BE THE 2025 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 https://www.meijergardens.org, John Ball Zoo https://jbzoo.org, Gerald R. Ford Presidential Library & Museum https://www.fordlibrarymuseum.gov

AIRPORT: Gerald R Ford International Airport https://www.grr.org

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 https://www.facebook.com/groups/297850544866464 to ask questions from those who have already experienced the awesomeness that is The Dirty Mitten!