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Half Marathons found in Illinois in September
View all ↓Half Marathons in Illinois in September 2025
Find A Race is the US's favourite event listings site. Check out our list of September 2025 Half Marathons in Illinois below.
Race Calendar: Half Marathons found in September
πBoosted
Belleville Main Street Marathon & Half Marathon
Belleville, Illinois
27 Sep 25
$96.88 - $107.75
πBoosted
Miles of Madness
Pekin, Illinois
27 Sep 25 - 28 Sep 25
$38.10 - $2,081.00
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Naperville Trails Half Marathon & 10K
Wheaton, Illinois
06 Sep 25
$57.49 - $123.74
National Chocolate Day: Run for Chocolates CHICAGO/EVANSTON
Chicago, Illinois
13 Sep 25
$32.80 - $52.94
Hedgehog Dash 5K/10K/13.1 CHICAGO/EVANSTON
Chicago, Illinois
13 Sep 25
$32.80 - $52.94
Divas Chicago Half Marathon and 5k
Chicago, Illinois
13 Sep 25
$53.99 - $96.39
Belleville Main Street Marathon & Half Marathon
Belleville, Illinois
27 Sep 25
$96.88 - $107.75
National Singles Day: Singles & Friends Running Club CHICAGO/EVANSTON
Chicago, Illinois
27 Sep 25
$32.80 - $48.70
Stone Bridge Half Marathon and 5k
Roscoe, Illinois
27 Sep 25
$27.50 - $59.30
National Coffee Day: Run for Coffee CHICAGO/EVANSTON
Chicago, Illinois
27 Sep 25
$32.80 - $48.70
Miles of Madness
Pekin, Illinois
27 Sep 25 - 28 Sep 25
$38.10 - $2,081.00
Life Time Chicago Half Marathon + 5K
Chicago, Illinois
28 Sep 25
$71.99 - $162.73
Showing 1-10 of 10 results