Illinois Half Marathon Calendar 2025-2026

Header image

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

5 km 10 km 21 km
Jan
31
Saturday

F3 Lake Half Marathon

5 km 21 km
March 2026
Mar
14
Saturday

Muddy Shamrock @ The Forge

Trail Run 7 mi 13 mi
Mar
28
Saturday

Rend Lake Marathon

11 km 21 km 42 km
April 2026
Apr
4
Saturday

Chi Town Half Marathon

10 km 21 km
Apr
11
Saturday

Lincoln Presidential Half Marathon

13 mi
Apr
23-25
Th - Sa

Illinois Race Weekend

5 km 10 km 21 km 42 km
May 2026
May
3
Sunday

Chicagoland Spring Marathon

10 km 21 km 42 km
May
17
Sunday

Chicago Spring Half Marathon

10 km 21 km
May
31
Sunday

North Shore Classic

5 km 21 km
August 2026
Aug
22-23
Sa - Su

Shawnee Hills Trail Races

Trail Run 13 mi 50 km 100 km 100 mi
Articles
Top 10 Marathons in the Netherlands — The Ultimate Dutch Marathon Bucket List: 10 Unmissable Races
The Beauty of the Easy Run — Why slowing down might be the smartest thing you do for your running
Mizuno Wave Rider 28: Elevating the Legacy of a Running Icon
Garmin Forerunner Review: Garmin Forerunner Series