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Ultra Marathons found in Michigan in October

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Ultra Marathons in Michigan in October 2025

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

Race Calendar: Ultra Marathons found in October

🚀Boosted

100 Miles a Month

Royal Oak, Michigan
01 Jun 25 - 01 Oct 25
Free - $11.60
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100 Miles a Month

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

Wolverine State 100

Petoskey, Michigan
11 Oct 25 - 12 Oct 25
Free - $327.50
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