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Half Marathons found in Illinois in September

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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

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Naperville Trails Half Marathon & 10K

Wheaton, Illinois
06 Sep 25
$51.74 - $123.74
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Hedgehog Dash 5K/10K/13.1 CHICAGO/EVANSTON

Chicago, Illinois
13 Sep 25
$32.80 - $48.70
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Naperville Trails Half Marathon & 10K

Wheaton, Illinois
06 Sep 25
$51.74 - $123.74

Divas Chicago Half Marathon and 5k

Chicago, Illinois
13 Sep 25
$48.69 - $85.79

National Chocolate Day: Run for Chocolates CHICAGO/EVANSTON

Chicago, Illinois
13 Sep 25
$32.80 - $48.70

Hedgehog Dash 5K/10K/13.1 CHICAGO/EVANSTON

Chicago, Illinois
13 Sep 25
$32.80 - $48.70

Spooky Sprint - Springfield

Springfield, Missouri
21 Sep 25
$20.83 - $59.10

Belleville Main Street Marathon & Half Marathon

Belleville, Illinois
27 Sep 25
$96.40 - $107.00

Stone Bridge Half Marathon and 5k

Roscoe, Illinois
27 Sep 25
$27.50 - $59.30

National Singles Day: Singles & Friends Running Club CHICAGO/EVANSTON

Chicago, Illinois
27 Sep 25
$32.80 - $48.70

National Coffee Day: Run for Coffee CHICAGO/EVANSTON

Chicago, Illinois
27 Sep 25
$32.80 - $48.70
Showing 1-9 of 9 results