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Ultra Marathons found in Michigan in Summer

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Ultra Marathons in Michigan in Summer 2025

Find A Race is the US's favourite event listings site. Check out our list of Summer 2025 Ultra Marathons in Michigan below.

Race Calendar: Ultra Marathons found in Summer

🚀Boosted

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

Middleville, Michigan
20 Jul 25
$32.80 - $181.20
🚀Boosted

Copper Harbor Trails Fest

Copper Harbor, Michigan
30 Aug 25 - 31 Aug 25
Free - $64.60
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100 Miles a Month

Royal Oak, Michigan
01 Jun 25 - 01 Oct 25
Free - $11.60

The FRED Running Relays - 25 Mile - 50 Mile - 100 Mile - 200 Mile

Rockford, Michigan
11 Jul 25 - 12 Jul 25
$54.00 - $117.60

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

Middleville, Michigan
20 Jul 25
$32.80 - $181.20

Michigan Titanium

Grand Rapids, Michigan
10 Aug 25 - 11 Aug 25
Free - $631.45

Copper Harbor Trails Fest

Copper Harbor, Michigan
30 Aug 25 - 31 Aug 25
Free - $64.60
Showing 1-5 of 5 results