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Marathons found in Michigan in October

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Marathons in Michigan in October 2025

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

Race Calendar: Marathons found in October

🚀Boosted

Team Running Lab Half / Full Marathon Training Group

Brighton, Michigan
28 Apr 25 - 19 Oct 25
Free
🚀Boosted

Rusty Fish Marathon

Manistee, Michigan
04 Oct 25
$64.60
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Team Running Lab Half / Full Marathon Training Group

Brighton, Michigan
28 Apr 25 - 19 Oct 25
Free

Rusty Fish Marathon

Manistee, Michigan
04 Oct 25
$64.60

Sleeping Bear Marathon, Half Marathon & 5K

Empire, Michigan
04 Oct 25
$55.00 - $113.53

Probility Ann Arbor Marathon: 5K • 10K • Half-Marathon • Full Marathon • Marathon Relay • Half-Marathon Walk

Ann Arbor, Michigan
11 Oct 25 - 12 Oct 25
Free - $256.90

McKirdy Micro: Breaking 4

Walker, Michigan
12 Oct 25
$186.50

University of Michigan Health-West Grand Rapids Marathon

Grand Rapids, Michigan
19 Oct 25
$49.05 - $284.85

MTTWM - 2025 Metro Health GR Marathon Half/Full

Grand Rapids, Michigan
19 Oct 25
Free - $27.50
Showing 1-7 of 7 results