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Triathlon Races in Michigan found

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Triathlon Races in Michigan 2025 - 2026

Michigan is home to more than 11,000 lakes. With that much water there’s no wonder it’s one of the best states in the US to take on a triathlon. Renowned for beautiful coastlines and stunning landscapes taking on a Triathlon in Michigan will be something to remember. The mix of swimming, cycling and running has been growing in popularity across the USA and it shows no signs of slowing down.

Wherever you are on your triathlon journey you’ll find the right challenge in the Great Lakes state. With events throughout the year of all standard distances from short and sharp Super Sprint distance, Sprint distance or Olympic triathlon, to more challenging 70.3 or ironman/full distance races. Most triathlons in Michigan make the most of the beautiful lake swimming but if it’s city scapes you’re after you can find those too in the likes of Detroit and Kalamazoo.

If you’re just starting out in the sport why not try out the Grand Rapids Triathlon, voted in the top 5 triathlons for beginners in the country. If you’re after something more iconic how about ironman 70.3 michigan on the shores of Lake Michigan or kick of the season at the Bear Lake Triathlon in West Michigan.

Check out our exhaustive 2025 - 2026 MichiganTriathlon calendar list below, and use our month, distance and terrain filters to find your next challenge.

Triathlon Races Michigan 2025 - 2026

πŸš€Boosted

Sunrise Side Triathlons & Duathlon

East Tawas, Michigan
06 Sep 25
$81.19 - $224.63
πŸš€Boosted

Rhoades McKee Reeds Lake Triathlon 2025

East Grand Rapids, Michigan
06 Sep 25
$33.15 - $139.15
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Genesis Triathlon

Shelby Township, Michigan
18 May 25
$81.19 - $224.63

Shi-Tri

Owosso, Michigan
18 May 25
$85.80 - $128.20

Bear Lake Triathlon

North Muskegon, Michigan
25 May 25
$65.75 - $181.64

Tri Greenville Triathlon & Duathlon

Greenville, Michigan
31 May 25
$38.10 - $128.20

Grand Rapids Triathlon

Ada, Michigan
07 Jun 25 - 08 Jun 25
$58.68 - $368.95

Epic Races' Island Lake Triathlon, Duathlon, Aquabike

Brighton, Michigan
07 Jun 25
$49.14 - $347.95

Au Sable Valley Triathlon

Mio, Michigan
14 Jun 25
$38.10

First Try Triathlon

Linden, Michigan
14 Jun 25
$60.05 - $65.35

M22 Challenge

Empire, Michigan
14 Jun 25
$207.70

Motor City Triathlon

Detroit, Michigan
15 Jun 25
$81.19 - $192.75

River Trail Adventure Triathlon

Lowell, Michigan
21 Jun 25
Free - $96.40

Tri Goddess Triathlon

Grass Lake, Michigan
28 Jun 25
$49.14 - $347.95

South Haven Triathlon

South Haven, Michigan
29 Jun 25
$58.68 - $128.64

Ann Arbor Tri, Du, & Aquabike

Gregory, Michigan
12 Jul 25
$47.02 - $337.45

Anchor Bay Triathlon

New Baltimore, Michigan
12 Jul 25
$70.40 - $107.50

Grand Haven Triathlon

Grand Haven, Michigan
13 Jul 25
$65.75 - $181.64

Cereal City Triathlon & Duathlon

Battle Creek, Michigan
19 Jul 25
$81.00

TriWalloon

Walloon Lake, Michigan
19 Jul 25
$107.00 - $160.00

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

Middleville, Michigan
20 Jul 25
$32.80 - $181.20

TriMillennium

Walker, Michigan
25 Jul 25 - 26 Jul 25
$48.70 - $181.20

Ugly Dog Triathlon

Grass Lake, Michigan
26 Jul 25
$60.80 - $128.64

Battle of Waterloo 10-Stage Adventure Triathlon

Grass Lake, Michigan
27 Jul 25
$219.80 - $322.75

Mark Mellon Triathlon & 5k

Gaylord, Michigan
09 Aug 25
Free - $97.15

Michigan Titanium

Grand Rapids, Michigan
10 Aug 25 - 11 Aug 25
Free - $578.95

Race the Straits of Mackinac

Mackinaw City, Michigan
17 Aug 25
$81.00 - $192.30

Capital City Kids Triathlon

Lansing, Michigan
23 Aug 25
$27.50 - $43.40

MI Triathlon / Duathlon Championship

Detroit, Michigan
31 Aug 25
$81.00 - $192.30

Rhoades McKee Reeds Lake Triathlon 2025

East Grand Rapids, Michigan
06 Sep 25
$33.15 - $139.15

Sunrise Side Triathlons & Duathlon

East Tawas, Michigan
06 Sep 25
$81.19 - $224.63

Dragon Trails Triathlon (Sprint)

Lake Orion, Michigan
07 Sep 25
$134.00 - $192.30

Chesaning Chamber of Commerce Dry-Tri

Chesaning, Michigan
13 Sep 25
$22.70 - $75.70

Driathlon 2025

Bay City, Michigan
14 Sep 25
$64.60 - $75.20

The Dirty Mitten Gravel Triathlon

Middleville, Michigan
21 Sep 25
$58.68 - $149.84

Last TRI

Shelby Township, Michigan
21 Sep 25
$81.00 - $192.30

5th Annual Grand River Color Tour Triathlon

Eaton Rapids, Michigan
04 Oct 25
Free - $60.00

TRIx3

White Lake, Michigan
13 Apr 25
$48.70 - $54.00

Shermanator Triathlon

Augusta, Michigan
02 Aug 25
$43.40 - $96.40
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