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Half Marathons found in Illinois in August

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Half Marathons in Illinois in August 2025

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

Race Calendar: Half Marathons found in August

🚀Boosted

RAMP River Run – 3K, 5K, & 1/2 Marathon Run

Rockford, Illinois
16 Aug 25
Free - $80.50
🚀Boosted

Fly with the Eagles Half Marathon-SUMMER EDITION!

Southern, Illinois
18 Jul 25 - 10 Aug 25
$28.33
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RAMP River Run – 3K, 5K, & 1/2 Marathon Run

Rockford, Illinois
16 Aug 25
Free - $80.50

Labor Day Run 5K/10K/13.1 CHICAGO/EVANSTON

Chicago, Illinois
30 Aug 25
$32.80 - $52.94

Sunrise Marathon 5K/10K/13.1 CHICAGO/EVANSTON

Chicago, Illinois
30 Aug 25
$32.80 - $52.94

Fly with the Eagles Half Marathon-SUMMER EDITION!

Southern, Illinois
18 Jul 25 - 10 Aug 25
$28.33

Run for Mental Health 5K/10K/13.1 CHICAGO/EVANSTON

Chicago, Illinois
16 Aug 25
$32.80 - $52.94

The Cookie Dash Run 5K/10K/13.1 CHICAGO/EVANSTON

Chicago, Illinois
16 Aug 25
$32.80 - $52.94
Showing 1-6 of 6 results