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Half Marathons found in Illinois in May
View all ↓Half Marathons in Illinois in May 2026
Find A Race is the US's favourite event listings site. Check out our list of May 2026 Half Marathons in Illinois below.
Race Calendar: Half Marathons found in May
🚀Boosted
Red Cedar Trail Races at Giant City State Park
Makanda, Illinois
Sat 30 May 26
$33.77 - $71.20
🚀Boosted
Run for Mental Health 5K/10K/13.1 CHICAGO/EVANSTON
Chicago, Illinois
Sat 23 May 26
$32.80 - $48.70
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Hometown Half Marathon & 5k/10k - Greater Chicago
Chicago, Illinois
Sat 02 May 26
$20.83 - $46.28
Cinco De Mayo Run 5K/10K/13.1 CHICAGO/EVANSTON
Chicago, Illinois
Sat 02 May 26
$32.80 - $48.70
Sunrise Marathon 5K/10K/13.1 CHICAGO/EVANSTON
Chicago, Illinois
Sat 02 May 26
$32.80 - $48.70
Chicagoland Spring Marathon, Half Marathon & 10K
Schaumburg, Illinois
Sun 03 May 26
$45.99 - $179.99
Run for Mental Health 5K/10K/13.1 CHICAGO/EVANSTON
Chicago, Illinois
Sat 23 May 26
$32.80 - $48.70
Red Cedar Trail Races at Giant City State Park
Makanda, Illinois
Sat 30 May 26
$33.77 - $71.20
Showing 1-6 of 6 results