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Half Marathons found in Michigan in September
View all ↓Half Marathons in Michigan in September 2025
Find A Race is the US's favourite event listings site. Check out our list of September 2025 Half Marathons in Michigan below.
Race Calendar: Half Marathons found in September
πBoosted
South Lyon Pumpkinfest Half-Marathon
South Lyon, Michigan
28 Sep 25
Free
πBoosted
Detroit Women's Half Marathon, 10K, and 5K: Women Run the D Run/Walk
Detroit, Michigan
21 Sep 25
Free - $119.10
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Team Running Lab Half / Full Marathon Training Group
Brighton, Michigan
28 Apr 25 - 19 Oct 25
Free
Medal Madness 1M, 5K, 10K, 15K, & Half Marathon at Mount Hope Park, Grand Ledge, MI (36) 80
Grand Ledge, Michigan
06 Sep 25
$27.75 - $70.15
Mt. Baldhead Challenge
Saugatuck, Michigan
06 Sep 25
$70.40 - $91.60
Pave the Way
Shelby Township, Michigan
06 Sep 25
$39.95 - $81.89
2025 Holland Haven Marathon
Holland, Michigan
07 Sep 25
$59.30 - $144.10
Millington - Run Michigan Cheap
Millington, Michigan
07 Sep 25
$22.20 - $32.80
Lake Superior Shore Run
Marquette, Michigan
12 Sep 25 - 13 Sep 25
Free - $66.72
Medal Madness 1M, 5K, 10K, 15K, & Half Marathon at McCurdy Park, Corunna, MI (38) 50
Corunna, Michigan
20 Sep 25
$27.75 - $70.15
2025 Run Iron Mountain Half Marathon | 1OK | 5K | 1 Mile Fun Run
Iron Mountain, Michigan
20 Sep 25
$12.50 - $149.40
Capital City River Run
Lansing, Michigan
20 Sep 25
$11.60 - $77.32
Detroit Women's Half Marathon, 10K, and 5K: Women Run the D Run/Walk
Detroit, Michigan
21 Sep 25
Free - $119.10
Escanaba Fall Classic Half Marathon | 5K
Escanaba, Michigan
27 Sep 25
$23.75 - $64.95
Sault International Festival of Races
Sault Sainte Marie, Michigan
27 Sep 25 - 28 Sep 25
$27.50 - $43.40
Gentex Park2Park 1/2 Marathon & 5K for Neighbors Plus
Holland, Michigan
27 Sep 25
$27.85 - $59.92
SHE RUNS Grand Rapids
Grand Rapids, Michigan
28 Sep 25
$38.45 - $96.75
MTTWM - 2025 SHERunsGR
Grand Rapids, Michigan
28 Sep 25
Free - $27.50
Heritage 13.1 & 50K Trail Run
Adrian, Michigan
28 Sep 25
$85.80 - $107.00
South Lyon Pumpkinfest Half-Marathon
South Lyon, Michigan
28 Sep 25
Free
Showing 1-18 of 18 results