TriathlonIllinois

Triathlon in Illinois

Browse upcoming amateur triathlon events and compare dates, locations, and popularity. in Illinois.

Upcoming dates Illinois Community-rated events

Events listed

20

Sport

Triathlon

Area

Illinois

Radius

350 km

All Triathlon events

This calendar in numbers

This calendar currently lists 20 upcoming events, from Aug 29, 2026 to Feb 21, 2027. September is the busiest month, with 11 events scheduled. Events are spread across 18 different locations; Madison hosts the most (3).

Other sports in Illinois

RunningCross (XC)Trail RunningUltrarunningAthleticsRoad CyclingGravelCicloturismo

Triathlon in other areas

ChicagoSt. LouisIndianaIndianapolisMissouriIowaCincinnatiWisconsin