Illinois Half Marathon Calendar 2025-2026

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Explore the best half marathons in Illinois for 2025-2026! Our updated list features 41 exciting races across the region. Find your next race in Illinois below and join the running community at these great events!

March 2025
Mar
15
Saturday

Muddy Shamrock @ The Forge

Trail Run 6 mi 13 mi
Mar
16
Sunday

March Madness Half Marathon

13 mi
Mar
29
Saturday

Rend Lake Marathon

10 km 13 mi 26 mi
Mar
29
Saturday

Southern Illinois Spring Classic Half Marathon

5 km 13 mi
April 2025
Apr
5
Saturday

Chi Town Half Marathon

10 km 13 mi
Apr
5
Saturday

Lincoln Presidential Half Marathon

13 mi
Apr
11-12
Fr - Sa

Allerton Races

Trail Run 5 km 10 km 13 mi
Apr
12
Saturday

Donot Stop Half Marathon - Chicago

5 km 10 km 13 mi
Apr
19
Saturday

Loud Thunder 50

Trail Run 13 mi 50 km 50 mi
Apr
24-26
Th - Sa

Illinois Race Weekend

5 km 10 km 13 mi 26 mi
May 2025
May
4
Sunday

Great Western Half-Marathon & 10K

Trail Run 10 km 13 mi
May
4
Sunday

Chicagoland Spring Marathon

10 km 13 mi 26 mi
May
11
Sunday

Quad Cities Distance Classic

5 km 13 mi
May
18
Sunday

Chicago Spring Half Marathon

10 km 21 km
May
24
Saturday

Run for Heroes Half Marathon

5 km 10 km 13 mi
May
24
Saturday

Red Cedar Trail Half Marathon

Trail Run 13 mi 38 km
May
31
Saturday

Hometown Half Marathon - Chicago

5 km 10 km 13 mi
June 2025
Jun
1
Sunday

North Shore Classic

5 km 13 mi
Jun
7
Saturday

River Bottom Country Runs for St Jude

5 km 13 mi
Jun
28
Saturday

Hoffman Estates Stars and Stripes Half Marathon

5 km 10 km 13 mi
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