Name: The Dirty Mitten Gravel Triathlon
Start: 2026-09-20
End: 2026-09-20
Location: Middleville, Michigan

About the Event

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!

Races Offered

The Dirty Mitten Virtual

Sep 20, 2026

straighten

Distance — The Dirty Mitten Virtual

terrain

Type — Water sports

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08:30

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$69.00

The Long One Aquabike (Olympic)

Sep 20, 2026

straighten

Distance — 33.5 Miles

terrain

Type — Water sports

timer

08:30

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$129.00

The Long One Duathlon (Olympic)

Sep 20, 2026

straighten

Distance — 42 Miles

terrain

Type — Water sports

timer

08:30

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$129.00

The Long One Relay - 2 Person (Olympic)

Sep 20, 2026

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Distance — 39.5 Miles

terrain

Type — Water sports

timer

08:30

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$97.00

The Long One Relay - 3 Person (Olympic)

Sep 20, 2026

straighten

Distance — 39.5 Miles

terrain

Type — Water sports

timer

08:30

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$64.67

The Long One Triathlon (Olympic)

Sep 20, 2026

straighten

Distance — 39.5 Miles

terrain

Type — Water sports

timer

08:30

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$129.00

The Shorty Aquabike (Sprint)

Sep 20, 2026

straighten

Distance — 14.5 Miles

terrain

Type — Water sports

timer

09:00

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$99.00

The Shorty Duathlon (Sprint)

Sep 20, 2026

straighten

Distance — 20 Miles

terrain

Type — Water sports

timer

09:00

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$99.00

The Shorty Relay - 2 person (Sprint)

Sep 20, 2026

straighten

Distance — 17.5 Miles

terrain

Type — Water sports

timer

09:00

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$59.50

The Shorty Relay - 3 person (Sprint)

Sep 20, 2026

straighten

Distance — 17.5 Miles

terrain

Type — Water sports

timer

09:00

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$46.33

The Shorty Triathlon (Sprint)

Sep 20, 2026

straighten

Distance — 17.5 Miles

terrain

Type — Water sports

timer

09:00

sell

$99.00

Weather Overview

These values represent the 3-year monthly averages for September in Middleville.

Temp (°C)

Feels Like (°C)

thermostat 13.8° / 24.2°

wb_sunny 12.7° / 23.1°

Wind (km/h)

Humidity (%)

air 9.6 /

water_drop 72.1%

Temp (°C)

Feels Like (°C)

Wind (km/h)

Humidity (%)

thermostat 13.8° / 24.2°

wb_sunny 12.7° / 23.1°

air 9.6 km/h

water_drop 72.1%

About Middleville

Middleville is a village in Thornapple Township, Barry County, in the U.S. state of Michigan. Middleville is part of the Grand Rapids metropolitan area. The population was 4,295 at the 2020 census.