370 Lakeside Triathlon

The race begins with a beautiful beach start at 370 Lakeside Park. Enjoy the lake swim, scenic fast bike course on the country roads of St. Charles County and finish your race with a run on the flat park trails. We offer a variety of race options: 5K Run/WalkSuper Sprint Triathlon 300m swim / 23k bike / 2 mile runSprint Triathlon 750m swim / 23k bike / 5k runSprint Collegiate Triathlon 750m swim / 23k bike / 5k runSprint High School Triathlon 750m swim / 23k bike / 5k runSprint Aquabike ​750m swim / 23k bikeSprint Duathlon 2 mile run / 23k bike / 5k run*NEW* - Sprint Aquathlon 750m swim / 5k runSprint Relay​​ 750m swim / 23k bike / 5k runSprint Paratriathlon 750m swim / 23km bike / 5km runSprint Paratriathlon Relay 750m swim / 23km bike / 5km runOlympic Triathlon ​​1.5k swim / 40k bike / 10k runOlympic Aquabike 1.5k swim / 40k bikeOlympic Duathlon​​ 5k run / 40k bike / 10k run*NEW* - Olympic Aquathlon 1.5k swim / 10k runOlympic Relay​​ 1.5k swim / 40k bike / 10k runHalf Triathlon ​​1.2 mile swim / 56 mile bike /13.1 mile runHalf Aquabike​​ 1.2 mile swim / 56 mile bikeHalf Duathlon​​ 5k Run / 56 mile bike / 13.1 mile run*NEW* - Half Aquathlon 1.2 mile swim / 13.1 mile runHalf Relay ​​1.2 mile swim / 56 mile bike /13.1 mile runDate and Time: On Sun, 24 Aug 2025 07:00 - 15:30Venue details: 370 Lakeside Park, 1000 Lakeside Park Drive, St. Peters, Missouri, 63376, United States