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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
Naperville Trails Half Marathon & 10K
Wheaton, Illinois
06 Sep 25
$51.74 - $123.74
πBoosted
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