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

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

Spring Grove, Illinois, United States

18 Oct, 2026 (Sun)

$12.99 - $47.99

Obstacle race, Running

5K 10K 1.6K +6

Bolingbrook Howl-O-Ween 5K

Bolingbrook, Illinois, United States

18 Oct, 2026 (Sun)

$35.00

Running

5K

Oktoberfest Rotary Run

Bloomington, Illinois, United States

18 Oct, 2026 (Sun)

$10.00 - $30.00

Running

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

Howl-o-ween 5k - Schaumburg

Rolling Meadows, Illinois, United States

24 Oct, 2026 (Sat)

$25.00

Running

5K

Forte 5K Run/Walk

Channahon, Illinois, United States

24 Oct, 2026 (Sat)

$27.00

Running

5K

Washington Park Trail Trek

Springfield, Illinois, United States

24 Oct, 2026 (Sat)

$30.00

Running, Walking

5K

Illinois State University Homecoming Town and Gown 5K

Normal, Illinois, United States

24 Oct, 2026 (Sat)

Free - $20.00

Running

5K 1.6K

Marshall Rotary presents: Jack-O-Jog 2026

Marshall, Illinois, United States

24 Oct, 2026 (Sat)

$25.00

Running

1.6K 5K

Lake Bluff PTO Pumpkin Chase

Lake Bluff, Illinois, United States

24 Oct, 2026 (Sat)

$20.00 - $35.00

Running

5K 1.6K

Halloween Hustle 5K & Kids Dash

Palatine, Illinois, United States

24 Oct, 2026 (Sat)

$39.99

Running

5K

The Fall Color 5K

Lisle, Illinois, United States

24 Oct, 2026 (Sat)

$45.00 - $55.00

Running

5K

Batavia United Way Bat Race 5K & 10K

Batavia, Illinois, United States

24 Oct, 2026 (Sat)

$5.00 - $45.00

Running

5K 10K 0.4K +1