10K races in Illinois, United States — 2026 trail running calendar

Sep

11

Hobo Trail Runs 10k-25k-50k

Rockford, Illinois, United States

$35.00 - $140.00

Trail running

Ultra 10K 25K +6

Sep

12

Chicago Trail Running Festival

Beecher, Illinois, United States

$55.00 - $135.00

Trail running

4.8K 9.7K 19.3K 29K +2

Sep

12

Chicago - Trail Running Festival

Beecher, Illinois, United States

$60.00 - $150.00

Trail running Running

5K 10K 20K 30K +2

Sep

12

Rocky Ledges 5K/10K Trail Run/Walk

Makanda, Illinois, United States

$30.00 - $35.00

Trail running

5K 10K

Nov

14

The Forge Trail Run Festival

Lemont, Illinois, United States

$62.50 - $100.00

Trail running

10K Half-Marathon 29.9K Ultra

Jan

23

Fox Valley Winter Challenge Trail Series 5k/8k/10k

Batavia, Illinois, United States

$40.00 - $115.00

Trail running

5K 8K 10K +3

Mar

13

Muddy Shamrock @ The Forge

Lemont, Illinois, United States

$50.00 - $65.00

Trail running

Half-Marathon 10.5K

Mar

14

Fox Valley Winter Challenge Trail Series 10K

Saint Charles, Illinois, United States

$45.00

Trail running

10K

May

02

Spring Stampede 5K/10K

Hanna City, Illinois, United States

Free - $35.00

Trail running Running

5K 10K Spring Stampede Volunteer for Packet Pick Up Spring Stampede Volunteer for Course Intersection Monitor +1

Jun

27

The Universal Sole Summer Trail Challenge

Willow Springs, Illinois, United States

Trail running

4.8K 9.7K 14.5K