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Illinois Running Calendar 2026-2027

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Monthly updates for Illinois

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

Explore the best running races in Illinois for 2026-2027! Our updated list features 776 exciting races across the region. Find your next race in Illinois below and join the running community at these great events!

Half Marathons Marathons Trail Runs Triathlons Fitness Races
May 2026
May
10
Su

Quad Cities Distance Classic

5 km 13 mi
May
10
Su

Wings for Life World Run Urbana-Champaign

May
15
Fr

Girls on the Run Northwest Illinois Rockford 5K

5 km
May
16
Sa

Spirits Run on the Rocks 5K - Waukegan

5 km
Spirits Run on the Rocks 5K - Waukegan A lakefront 5K in Waukegan on May 16, 2026, starting and finishing at Green Town on the Rocks. The course passes Oakwood Cemetery and the harbor, and the event includes food for participants plus post-run drinks and music.
May
16
Sa

Galena Sky Trail Races

Backyard Ultra
May
16
Sa

YMCA Springfest Fun Run 5k

5 km
May
16
Sa

Chicago 7/11 Hour Endurance Run

Backyard Ultra
May
16
Sa

Ducky Dash

5 km
May
16
Sa

Run for D103 5K

5 km
May
16
Sa

Cary Hero Dash 5KM Walk/Run

5 km
May
16
Sa

Kennekuk Road Runners - Dogs & Cats

5 km
May
16
Sa

Run for Brain Health

5 km
May
16
Sa

Bright Star Community Outreach 5K

5 km
May
16
Sa

Family Service Association 5k

5 km
May
16
Sa

Palos Park Doggie Dash

5 km
May
16
Sa

S2 Faction 5K - Bloomington

5 km
May
16
Sa

Harlem Huskie Hustle 5K

5 km
May
16
Sa

Run for Love

5 km
May
16
Sa

Operation Granite

Obstacle Run 6 mi
May
16
Sa

Wolf Lake 5k

5 km
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