Illinois Running Calendar 2025-2026

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Explore the best running races in Illinois for 2025-2026! Our updated list features 313 exciting races across the region. Find your next race in Illinois below and join the running community at these great events!

Half Marathons Marathons Trail Runs Triathlons
January 2026
Jan
1
Thursday

Cheers to New Year's 5k

5 km
Jan
1
Thursday

Way of Lights Run

2 mi 5 km
Jan
3
Saturday

Siberian Express

Trail Run 7 mi
Jan
3
Saturday

Bodies Race Company - Chicago

5 km 10 km Half Marathon
Jan
10
Saturday

Frozen Gnome

Trail Run 10 km 50 km
Jan
10
Saturday

50k Mashup Slam

Trail Run 50 km
Jan
24
Saturday

The HUB 5K - Marion

5 km
Jan - Mar
24-22
Sa - Su

Fox Valley Winter Challenge Trail Series

Trail Run 5 km 8 km 10 km
Jan
24
Saturday

Frosty 5K - Peoria

5 km
Jan
31
Saturday

F3 Lake Half Marathon

5 km Half Marathon
February 2026
Feb
1
Sunday

St. Charles Indoor Triathlon

Triathlon
Feb
8
Sunday

Geneva Park District's Super Shuffle 5K

5 km
Feb
14
Saturday

Fly with the Eagles Half Marathon

Half Marathon
Feb
14
Saturday

Frozen Cock's Crow 5k

Trail Run 3 mi
Feb
28
Saturday

YMCA Dry Tri

Triathlon
Feb
28
Saturday

Saw Wee Kee - Winter Trail Run

Trail Run
March 2026
Mar
7
Saturday

Cactus Classic Trail Races

Trail Run 10 km Half Marathon Marathon
Mar
7
Saturday

Manhattan Irish Fest Parade 5k

5 km
Mar
7
Saturday

Miller Park Zoo Stampede

3 km 5 km
Mar
14
Saturday

Muddy Shamrock @ The Forge

Trail Run 7 mi 13 mi
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