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Half Marathons found in Illinois in October
View all ↓Half Marathons in Illinois in October 2025
Find A Race is the US's favourite event listings site. Check out our list of October 2025 Half Marathons in Illinois below.
Race Calendar: Half Marathons found in October
Long Grove's Prairie State Half Marathon, 10K & Oktoberfest 5K
Long Grove, Illinois
04 Oct 25
$42.54 - $118.13
Spooky Sprint - Chicago
Chicago, Illinois
18 Oct 25
$18.83 - $44.28
Haunted Halloween Half Marathon & 5km
Chicago, Illinois
26 Oct 25
$38.35 - $59.55
Run Stephenson County
Orangeville, Illinois
18 Oct 25
$38.10 - $59.30
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