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

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

Rosehill Cemetery 'Crypt' 5K Run/Walk

Chicago, Illinois, United States

Oct 17, 2026 (Sat)

$42.00 - $47.00

Running

5K

Cantigny 5K Run/Walk 2026 - Benefiting The Midwest Shelter for Homeless Veterans

Wheaton, Illinois, United States

Oct 17, 2026 (Sat)

$5.00 - $25.00

Running

5K 1.6K

Tunnel to Towers 5K Run & Walk - Quincy, IL

Quincy, Illinois, United States

Oct 17, 2026 (Sat)

Free - $35.00

Running

5K +1

Run Stephenson County

Orangeville, Illinois, United States

Oct 17, 2026 (Sat)

Running

Half-Marathon 5K 10K

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

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)

Batavia United Way Bat Race 5K & 10K

Batavia, Illinois, United States

Oct 24, 2026 (Sat)

$5.00 - $45.00

Running

5K 10K 0.4K +1

Lake Bluff PTO Pumpkin Chase

Lake Bluff, Illinois, United States

Oct 24, 2026 (Sat)

$20.00 - $35.00

Running

5K 1.6K