Find upcoming endurance races in Illinois, laid out by month. Scan the dates, line them up against your training, and find the race that fits your season.
Endurance Grid lists 548 races in Illinois, from August 2026 to July 2027 across 277 cities.
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The lay of the land
Illinois runs a year-round race calendar, so there’s almost always a race near you. The calendar is busiest in September, August, and October, with races most often held in Chicago, Elk Grove Village, Springfield, and Rockford.
Races in Illinois are mostly flat prairie and farmland across the central and southern parts of the state, with the Lake Michigan shoreline and skyline backdrop shaping courses around Chicago. Expect fast, flat road races statewide and scenic lakefront routes in and around the city.
Conditions vary widely by region across Illinois, so weather lives where it’s accurate — each race page shows its typical race-day high, low, and rain chance from NOAA climate normals for that venue and date.
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Frequently Asked Questions (FAQs)
Endurance races in Illinois happening in the next 7 days, in date order. Browse what’s coming up and sign up soon.
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