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Ultra Marathons found in Michigan in Summer

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Ultra Marathons in Michigan in Summer 2026

Find A Race is the US's favourite event listings site. Check out our list of Summer 2026 Ultra Marathons in Michigan below.

Race Calendar: Ultra Marathons found in Summer

🚀Boosted

Michigan Titanium

Grand Rapids, Michigan
Sun 16 Aug 26
$55.15 - $578.95
🚀Boosted

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

Rockford, Michigan
Fri 10 Jul 26 - Sat 11 Jul 26
$43.40 - $91.10
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Summer Trail Fest Ultra 50K, Half Marathon, & 5 Miler

Laingsburg, Michigan
Sat 13 Jun 26
Free - $116.48

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

Rockford, Michigan
Fri 10 Jul 26 - Sat 11 Jul 26
$43.40 - $91.10

Michigan Titanium

Grand Rapids, Michigan
Sun 16 Aug 26
$55.15 - $578.95

Grand Rapids Triathlon

Ada, Michigan
Sun 07 Jun 26
$48.08 - $347.95
Showing 1-4 of 4 results