How many races are happening in September 2026 in Illinois?+
Endurance Grid's Race Calendar lists 154 upcoming endurance races in September 2026 in Illinois, across 110 cities.
What sports have races in September 2026 in Illinois?+
Races in September 2026 in Illinois span adventure, road cycling, duathlon, gravel, obstacle course, rucking, running, swimming, trail running, triathlon, and ultramarathon.
Which Illinois cities have races in September 2026?+
Races in September 2026 in Illinois are held in Chicago, Springfield, Elk Grove Village, Marion, Aurora, Belleville, Bloomington, Crystal Lake, Dekalb, and Dwight.
How current is this September race calendar for Illinois?+
This page refreshes every day and always shows the next September in Illinois, so the listing never goes stale.