Triathlons in Illinois

Illinois has 27 upcoming triathlons scheduled for 2026. Most of the calendar falls in the warmer months: 24 of 27 races (89%) take place between May and September, with July (9 events) the busiest month. No single city dominates the calendar. Evanston leads with 3 races, followed by Springfield (3), Champaign (3), and Paris (2). The remaining 59% of the calendar is spread across smaller cities.