Duathlons in Michigan in July 2025

Ann Arbor Tri, Du, & Aquabike

Gregory, Michigan

12 Jul 25

$43.84 - $316.45

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Grand Haven Triathlon

Grand Haven, Michigan

13 Jul 25

$58.68 - $149.84

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TriWalloon

Walloon Lake, Michigan

19 Jul 25

$96.40 - $149.40

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Cereal City Triathlon & Duathlon

Battle Creek, Michigan

19 Jul 25

$54.50

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TridelSol Olympic, Sprint & Super Sprint Triathlon, Duathlon, Aquabike, Relay & Swim Only Event

Middleville, Michigan

20 Jul 25

$32.80 - $160.00

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TriMillennium

Walker, Michigan

25 Jul 25 - 26 Jul 25

$48.70 - $181.20

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Ugly Dog Triathlon

Grass Lake, Michigan

26 Jul 25

$58.68 - $118.04

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Indian River Kayak Bike Biathlon

Indian River, Michigan

20 Jul 25

$64.60

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