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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 42 exciting races across the region. Find your next race in Illinois below and join the running community at these great events!

November 2025
Nov
29
Sa

The Best Races - Evanston
5 km 10 km 13 mi
Nov
29
Sa

Schaumburg Turkey Trot Half Marathon
5 km Half Marathon
December 2025
Dec
13
Sa

The Best Races - Chicago
5 km 10 km 13 mi
Dec
13
Sa

The Best Races - Evanston
5 km 10 km 13 mi
Dec
13
Sa

Iceman Series
5 km 10 km ... 18 km 13 mi
Dec
27
Sa

The Best Races - Chicago
5 km 10 km 13 mi
Dec
27
Sa

Iceman Series
5 km 10 km ... 18 km 13 mi
January 2026
Jan
3
Sa

Bodies Race Company - Chicago
5 km 10 km Half Marathon
Jan
10
Sa

Iceman Series
5 km 10 km ... 18 km 13 mi
Jan
24
Sa

Iceman Series
5 km 10 km ... 18 km 13 mi
Jan
31
Sa

F3 Lake Half Marathon
5 km Half Marathon
February 2026
Feb
7
Sa

Iceman Series
5 km 10 km ... 18 km 13 mi
Feb
14
Sa

Fly with the Eagles Half Marathon
Half Marathon
March 2026
Mar
7
Sa

Cactus Classic Trail Races
Trail Run 10 km Half Marathon Marathon
Mar
7
Sa

Bodies Race Company - Sugar Grove
5 km 10 km Half Marathon
Mar
14
Sa

Muddy Shamrock @ The Forge
Trail Run 7 mi 13 mi
Mar
15
Su

March Madness Half Marathon
Half Marathon
Mar
28
Sa

Rend Lake Marathon
10 km Half Marathon Marathon
April 2026
Apr
4
Sa

Chi Town Half Marathon
10 km Half Marathon
Apr
11
Sa

Lincoln Presidential Half Marathon
13 mi