Illinois · Marathon
Marathons in Illinois
Illinois currently has 12 upcoming marathons with a confirmed date listed in RaceRove. They take place in Geneva, Benton, Champaign and Chicago and elsewhere.
May (3), November (3) and April (2) are the busiest months on the calendar right now. Another 4 annual marathons are waiting for next year's date to be announced.
- Upcoming, date confirmed
- 12
- Active listings
- 16
- Cities with races
- 15
More ways to browse Illinois
Upcoming marathons in Illinois
All 12 with a confirmed date, soonest first.
-
Springfield Marathon & Harvest Wind Half Marathon & 10KNew Berlin, ILMarathonHalf Marathon10K ~1,403 runners
-
Chicagoland Spring Marathon, Half Marathon & 10KSchaumburg, ILMarathonHalf Marathon10K ~6,000 runners
Dates come from each race's own listing. Always confirm on the organiser's site before you book travel.
Largest marathon events in Illinois
By estimated field size across all distances at the event.
-
Chicagoland Spring Marathon, Half Marathon & 10KSchaumburg, ILMarathonHalf Marathon10K ~6,000 runners
-
Springfield Marathon & Harvest Wind Half Marathon & 10KNew Berlin, ILMarathonHalf Marathon10K ~1,403 runners
-
Last Chance BQ.2 Marathon (Illinois)Geneva, IL Usually held in September · next date not announcedMarathon ~254 runners
When marathons happen in Illinois
- March
- 1 upcoming race
- April
- 2 upcoming races
- May
- 3 upcoming races
- July
- 1 upcoming race
- October
- 2 upcoming races
- November
- 3 upcoming races
Illinois cities with the most marathons
- Geneva
- 1 upcoming race
- Benton
- 1 upcoming race
- Champaign
- 1 upcoming race
- Chicago
- 1 upcoming race
- Fulton
- 1 upcoming race
- Lake County
- 1 upcoming race
- New Berlin
- 1 upcoming race
- Palos Hills
- 1 upcoming race
Annual events awaiting their next date
These marathons are held every year, but the next date isn't in the listing yet. The month shown is when each is usually held.
-
Last Chance BQ.2 Marathon (Illinois)Geneva, IL Usually held in September · next date not announcedMarathon ~254 runners
-
Belleville Main Street Marathon & Half MarathonBelleville, IL Usually held in September · next date not announcedMarathonHalf Marathon10K5K ~175 runners
-
Screaming PumpkinPeoria, IL Usually held in October · next date not announced2 Mile Run/Walk6.55 Mile (10kish) - RaceFull MarathonHalf Marathon +2 more
-
The Next Loop Endurance Series - Busse WoodsElk Grove Village, IL Usually held in August · next date not announced50KMarathon18KHalf Marathon +3 more
Marathons in nearby states
Guides from the RaceRove blog
- 8 min read How to Choose Your First Marathon A practical checklist for choosing a first marathon based on course, weather, cutoff, travel, field size and support.
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 4 min read Diplo's Run Club 2026-27: Every City, Date and Course Diplo's Run Club is a 5K with a post-race concert. Every US date for 2026-27 (San Francisco, New York, Los Angeles, San Diego and Phoenix), start times and courses.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Marathons in Illinois: common questions
- How many marathons are there in Illinois?
- RaceRove currently lists 12 upcoming marathons in Illinois with a confirmed date, plus 4 annual events whose next date hasn't been announced yet.
- How long is a marathon?
- A marathon is 26.2 miles (42.2 kilometres).
- Which Illinois cities have the most marathons?
- By upcoming events listed in RaceRove: Geneva (1), Benton (1), Champaign (1), Chicago (1) and Fulton (1).
- When is marathon season in Illinois?
- Of the upcoming marathons listed, the busiest months are May (3), November (3) and April (2).
- What is the biggest marathon in Illinois?
- By estimated field size, the largest event with a marathon listed in Illinois is the Bank of America Chicago Marathon, with about 55,000 runners across all of its distances.
Search every marathon in Illinois
Filter by month, course profile and field size, save races to a shortlist and compare them side by side in the interactive search.