5K races in Illinois, United States — 2026 running calendar

F3 Naperville 5K Run & Walk for Little Friends

Warrenville, Illinois, United States

Sep 27, 2026 (Sun)

$20.00 - $45.00

Running

5K 0.8K

Plainfield Harvest Run 5k/10k & Kids Miler

Plainfield, Illinois, United States

Sep 27, 2026 (Sun)

$20.00 - $50.00

Running

1.6K 5K 10K

Catskin Days 5k

Carrier Mills, Illinois, United States

Sep 27, 2026 (Sun)

$25.00

Running, Walking

5K

Haunted Wine Run Virtual Race

Chicago, Illinois, United States

Sep 30, 2026 (Wed) – Oct 30, 2026

$29.00

Running

5K

5k for Hopeful Beginnings

Palatine, Illinois, United States

Sep 30, 2026 (Wed) – Dec 1, 2026

Running

5.2K

Shoreline Classic

Decatur, Illinois, United States

Oct 2, 2026 (Fri) – Oct 4, 2026

$45.00 - $50.00

Running

15K 5K

OCI Therapy 2026 5K

Rochester, Illinois, United States

Oct 3, 2026 (Sat)

$30.00

Running

5K

A Pace for Petey

Tuscola, Illinois, United States

Oct 3, 2026 (Sat)

$15.00 - $25.00

Running

5K Jake's Jog Kids Fun Run

Sweet Ride | Bike • Run • Walk

Willow Springs, Illinois, United States

Oct 3, 2026 (Sat)

$30.00 - $50.00

Running, Cycling

5K 40K Ultra

3rd Annual Downers Grove, IL Ostomy 5k

Downers Grove, Illinois, United States

Oct 3, 2026 (Sat)

$35.00

Running

5K

Scarecrow Scramble

Lisle, Illinois, United States

Oct 3, 2026 (Sat)

$40.00

Running

5K

Angels Against Abuse 5K Walk/Run

Romeoville, Illinois, United States

Oct 3, 2026 (Sat)

$35.00

Running

5K