Illinois Trail Running Calendar 2025-2026

Header image

Explore the best trail runs in Illinois for 2025-2026! Our updated list features 32 exciting races across the state. Find your next race in Illinois below and join the running community at these great events!

February 2025
Feb
1
Saturday

Frozen Tundra 5K

Trail Run 5 km
Feb
15
Saturday

Tour de Trails - Rockford

Trail Run 9 mi
Feb
16
Sunday

Frozen Cock's Crow 5k

Trail Run 5 km
March 2025
Mar
8
Saturday

Cactus Classic Trail Races

Trail Run 10 km 13 mi 26 mi
Mar
15
Saturday

Muddy Shamrock @ The Forge

Trail Run 6 mi 13 mi
Mar
22
Saturday

Skunk Ape 806/314 Trail Race

Trail Run 3 hr 8 hr
Mar
29
Saturday

Clinton Lake Ultra

Trail Run 10 mi 30 mi
April 2025
Apr
10-13
Th - Su

Potawatomi Trail Runs

Trail Run 10 mi 30 mi ... 150 mi 200 mi
Apr
11-12
Fr - Sa

Allerton Races

Trail Run 5 km 10 km 13 mi
Apr
19
Saturday

Loud Thunder 50

Trail Run 13 mi 50 km 50 mi
Apr
26
Saturday

Earth Day 50K/15 Mile/5 Mile

Trail Run 5 mi 15 mi 50 km
Apr
26
Saturday

Childish Nonsense

Trail Run 10 km 25 km 50 km 50 mi
May 2025
May
4
Sunday

Spring Stampede 10k

Trail Run 10 km
May
4
Sunday

Great Western Half-Marathon & 10K

Trail Run 10 km 13 mi
May
10
Saturday

F^3 Cap Sauers Trail Marathon

Trail Run 10 mi 26 mi
May
24
Saturday

Red Cedar Trail Half Marathon

Trail Run 13 mi 38 km
June 2025
Jun
7
Saturday

Lincoln Memorial Garden Trail Race

Trail Run 8 km
August 2025
Aug
9
Saturday

Chupacabra Trail Races

Trail Run 5 mi 10 mi 15 mi
Aug
23-24
Sa - Su

Shawnee Hills Trail Races

Trail Run 13 mi 50 km 100 km 100 mi
Aug
30-31
Sa - Su

Temptation 200 Ultras

Trail Run 10 km 50 km 200 km
Articles
Garmin Forerunner Review: Garmin Forerunner Series 2024
Stride with Confidence: A Comprehensive Guide to Saucony Running Shoes
Essential Running Form Techniques for Enhanced Performance and Injury Prevention