Illinois

Illinois 5K Race Calendar 2026-2027

Monthly updates for Illinois

Get new running races (and updates) in your inbox every month.

Explore the best 5k races in Illinois for 2026-2027! Our updated list features 428 exciting races across the region. Find your next race in Illinois below and join the running community at these great events!

October 2026

Oct

2-4

Fr - Su

Shoreline Classic

Decatur, Illinois

5 km 15 km

Oct

Scott AFB - CMSAF Binnicker Memorial Run - Race at Your Base

Scott Air Force Base, Illinois

5 km 9 km

Oct

Kickin' Up the Dust 5K

Plano, Illinois

5 km

Western themed timed 5K at Fox Ranch in Plano IL on October 3, 2026, with medals, swag, music and costume prizes; registration fee $20.

Oct

Scarecrow Scramble

Lisle, Illinois

5 km

Oct

Run the Woods

Hudson, Illinois

Trail Run 5 km 8 km

Monthly updates for Illinois

Get new running races (and updates) in your inbox every month.

Oct

Your Ways 5K

Robinson, Illinois

3 mi

Oct

Long Grove's Oktoberfest Half Marathon, 10K & 5K

Long Grove, Illinois

5 km 10 km Half Marathon

Oct

Hops for Hope 5K

St. Charles, Illinois

5 km

Oct

OCI Therapy 5K

Rochester, Illinois

5 km

Oct

Ostomy 5k

Downers Grove, Illinois

5 km

Oct

Autumn Leaf Run

Freeport, Illinois

Trail Run 5 km

Oct

Haunted Wine Run 5K at Busse Woods

Elk Grove Village, Illinois

5 km

Oct

Diplo's Run Club - Chicago

Chicago, Illinois

5 km

Oct

Angels Against Abuse 5K

Romeoville, Illinois

5 km

Oct

Boo Island - 5K Charity Run/Walk

Blue Island, Illinois

5 km

Oct

A Pace for Petey

Tuscola, Illinois

3 mi

Oct

Montgomery River Run

Montgomery, Illinois

5 km 10 km

Oct

Panting Four Paws

Crystal Lake, Illinois

5 km 10 km

Oct

Sweet Ride

Willow Springs, Illinois

5 km

Oct

Yellow Brick Road 5K Fun Run - Lake in the Hills

Lake in the Hills, Illinois

5 km