Race calendar · Illinois, United States
Running races in Illinois
272 upcoming races across Illinois. Every date checked against the organiser. Your next race, seen from above.
Chicago, IL · seen from above
272 upcoming races across Illinois. Every date checked against the organiser. Your next race, seen from above.
Runs through a newspaper baron's historic estate
Flat 5K along the Chicago Lakefront, then a Brewfest
Now in its 48th year each pumpkin season
A multi-decade ultra tradition along the Chicago lakefront
Costumed campus 5K with a pumpkin patch after
Pilsen's Day of the Dead celebration run
Winds through eerie cemeteries, finishes with a cocktail
Through native tallgrass prairie near Urbana
Every race here is published by its organiser; RunCalendar checks the date and the entry window against the organiser's own page and rebuilds this calendar every night. A confirmed date shows its day; a provisional one shows only its month. Last updated 22 October 2026.