The Dirty Mitten Gravel Triathlon

  • Date Sun 20th September 2026
  • Time 8:30AM EDT
  • Location Middleville, Michigan
  • Price $58.68 - $149.84
  • Races 11 races
  • Distances Ultra

Event summary

Get ready for an unforgettable experience at The Dirty Mitten Gravel Triathlon, taking place on Sunday, September 20, 2026, in the beautiful Middleville, Michigan. This exciting event, set against the scenic backdrop of Camp Manitou-lin, proudly claims the title of the 2026 Gravel World Championship of the Universe (a fun nod to its awesomeness!). Participants can choose from a variety of race distances, including the beginner-friendly sprint option known as The Shorty and the more challenging Olympic course dubbed The Long One. With nine events to choose from, including triathlon, aquabike, duathlon, and relay formats, there's something for everyone to enjoy.

Join fellow athletes for a day filled with camaraderie and competition, and afterward, explore the stunning local attractions like the Frederick Meijer Gardens & Sculpture Park or the John Ball Zoo. Whether you're participating in person or virtually, The Dirty Mitten promises a thrilling atmosphere and a chance to make lasting memories. Mark your calendars and get ready to embrace the excitement of this unique triathlon experience!

Organiser's Description

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 [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!

Races

  • The Shorty Triathlon (Sprint)

    Incl. $9.04 Fee & T-Shirt

    Sun 20th September 2026 (9:00AM EDT)

    $118.04

    Swim 750m, Bike 14 Miles, Run 5k
  • The Shorty Duathlon (Sprint)

    Incl. $9.04 Fee & T-Shirt

    Sun 20th September 2026 (9:00AM EDT)

    $118.04

    Run 5k, Bike 14 Miles, Run 5k
  • The Shorty Aquabike (Sprint)

    Incl. $9.04 Fee & T-Shirt

    Sun 20th September 2026 (9:00AM EDT)

    $118.04

    Swim 750m, Bike 14 Miles
  • The Shorty Relay - 2 Person (Sprint)

    Incl. $6.67 Fee & T-Shirt

    Sun 20th September 2026 (9:00AM EDT)

    $76.17

    Swim 750m, Bike 14 Miles, Run 5k
  • The Shorty Relay - 3 Person (Sprint)

    Incl. $5.68 Fee

    Sun 20th September 2026 (9:00AM EDT)

    $58.68

    Swim 750m, Bike 14 Miles, Run 5k
  • The Long One Triathlon (Olympic)

    Incl. $10.84 Fee & T-Shirt

    Sun 20th September 2026 (8:30AM EDT)

    $149.84

    Swim 1500m, Bike 31.9 Miles, Run 10k
  • The Long One Duathlon (Olympic)

    Incl. $10.84 Fee & T-Shirt

    Sun 20th September 2026 (8:30AM EDT)

    $149.84

    Run 5k, Bike 31.9 Miles, Run 10k
  • The Long One Aquabike (Olympic)

    Incl. $10.84 Fee & T-Shirt

    Sun 20th September 2026 (8:30AM EDT)

    $149.84

    Swim 1500m, Bike 31.9 Miles
  • The Long One Relay - 2 Person (Olympic)

    Incl. $8.92 Fee & T-Shirt

    Sun 20th September 2026 (8:30AM EDT)

    $115.92

    Swim 1500m, Bike 31.9 Miles, Run 10k
  • The Long One Relay - 3 Person (Olympic)

    Incl. $6.78 Fee

    Sun 20th September 2026 (8:30AM EDT)

    $78.11

    Swim 1500m, Bike 31.9 Miles, Run 10k
  • The Dirty Mitten Virtual

    Incl. $6.64 Fee & T-Shirt

    $75.64

    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.

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Location

1095 N Briggs Rd, Middleville, 49333, MI, United States

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Sep 20, 2026

$58.68 - $149.84