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Illinois Half Marathon Calendar 2025-2026

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Explore the best half marathons in Illinois for 2025-2026! Our updated list features 51 exciting races across the region. Find your next race in Illinois below and join the running community at these great events!

January 2026
Jan
25
Sunday

Time Travel Half-Marathon - Quad Cities

Moline, Illinois
5 km 10 km 21 km
Jan
31
Saturday

F3 Lake Half Marathon

Chicago, Illinois
5 km 21 km
March 2026
Mar
14
Saturday

Muddy Shamrock @ The Forge

Lemont, Illinois
Trail Run 7 mi 13 mi
Mar
28
Saturday

Rend Lake Marathon

Whittington, Illinois
11 km 21 km 42 km
April 2026
Apr
4
Saturday

Chi Town Half Marathon

Chicago, Illinois
10 km 21 km
Apr
11
Saturday

Lincoln Presidential Half Marathon

Springfield, Illinois
13 mi
Apr
23-25
Th - Sa

Illinois Race Weekend

Champaign, Illinois
5 km 10 km 21 km 42 km
May 2026
May
3
Sunday

Chicagoland Spring Marathon

Schaumburg, Illinois
10 km 21 km 42 km
May
17
Sunday

Chicago Spring Half Marathon

Chicago, Illinois
10 km 21 km
May
31
Sunday

North Shore Classic

Highland Park, Illinois
5 km 21 km
August 2026
Aug
22-23
Sa - Su

Shawnee Hills Trail Races

Ozark, Illinois
Trail Run 13 mi 50 km 100 km 100 mi
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