United States · Illinois
Illinois Race Calendar
Browse 5Ks, marathons, triathlons, cycling and more across Illinois — explore top cities, sports and upcoming dates.
- Events
- 951
- Cities with events
- 380
- Next race
- Jul 12
Last updated:
About
Racing in Illinois
Illinois lists 950 active races, with the busiest race scenes in Chicago, Springfield and Aurora. Running leads the Illinois calendar, alongside other running, cycling, swimming and multisport events across the state. Whether you're chasing a first 5K or a marathon PR, every listing below includes dates, distances and a direct link to register.
Every distance
From 5Ks and 10Ks to half marathons and longer, Illinois's calendar spans road, trail, cycling, swimming and triathlon events.
When to race
Spring and fall are the busiest seasons, but you will find events on the calendar throughout the year.
Easy to register
Every event shows its distances and dates with a direct link to the official registration page.
Coming soon
Upcoming Races in Illinois
Cardio Kidz Summer Running Series
Disability Awareness Walk, Run, Roll
H-F Beast Obstacle Course Dash
MTC Zilla Tri
Polka Run 5K
Run Your Bass Off
The Chicago History 5K Run and Walk
Chicago Highlands Club
2026 MAD TUNA TOURNAMENT
The Police Chase Twilight 5k @ Vernon Hills Days
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Popular sports in Illinois
Most active
Top cities for races
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All cities in Illinois
Good to know
Frequently asked questions
Everything you need to know about finding and registering for races in Illinois.
Browse all events →How many races are there in Illinois?
Which Illinois cities host the most races?
When is race season in Illinois?
Are there beginner-friendly races in Illinois?
How do I register for a race?
Ready to find your next race?
Browse every event in Illinois with dates, distances and registration links.
Browse all Illinois races