Race Calendar in Illinois, United States

Chicago Fall Classic Half Marathon, 10K & Hot Cider Hustle 5K

Chicago, Illinois, United States

Oct 17, 2026 (Sat)

$12.99 - $119.99

Running

Half-Marathon 10K 5K +7

Firehouse 5K

Oconee, Illinois, United States

Oct 17, 2026 (Sat)

$30.00

Running, Walking

5K 1.6K

Richardson Farm Fall 5K & 10K with Family 1 Mile Adventure Run

Spring Grove, Illinois, United States

Oct 18, 2026 (Sun)

$12.99 - $47.99

Obstacle race, Running

5K 10K 1.6K +6

Bolingbrook Howl-O-Ween 5K

Bolingbrook, Illinois, United States

Oct 18, 2026 (Sun)

$35.00

Running

5K

Oktoberfest Rotary Run

Bloomington, Illinois, United States

Oct 18, 2026 (Sun)

$10.00 - $30.00

Running

5K 1.6K Brat Dinner + Shirt (No Race) Brat Dinner (No Race)

Marklund Run, Walk & Roll 5K/1Mile

Geneva, Illinois, United States

Oct 18, 2026 (Sun)

$40.00

Running

Marklund Run, Walk & Roll

23rd Annual This Run's For Jack 2026

Glen Ellyn, Illinois, United States

Oct 18, 2026 (Sun)

$25.00 - $40.00

Running

5K 16.1K

Haunted Highlander Assault Trail Run

Pingree Grove, Illinois, United States

Oct 23, 2026 (Fri)

$70.00

Trail running

5K +13

The Fall Color 5K

Lisle, Illinois, United States

Oct 24, 2026 (Sat)

$45.00 - $55.00

Running

5K

Marshall Rotary presents: Jack-O-Jog 2026

Marshall, Illinois, United States

Oct 24, 2026 (Sat)

$25.00

Running

1.6K 5K

Washington Park Trail Trek

Springfield, Illinois, United States

Oct 24, 2026 (Sat)

$30.00 - $35.00

Running, Walking

5K

Forte 5K Run/Walk

Channahon, Illinois, United States

Oct 24, 2026 (Sat)

$27.00

Running

5K