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/Walk Super Sprint Triathlon 300m swim / 23k bike / 2 mile run Sprint Triathlon 750m swim / 23k bike / 5k run Sprint Collegiate Triathlon 750m swim / 23k bike / 5k run Sprint High School Triathlon 750m swim / 23k bike / 5k run Sprint Aquabike ​750m swim / 23k bike Sprint Duathlon 2 mile run / 23k bike / 5k run *NEW* - Sprint Aquathlon 750m swim / 5k run Sprint Relay​​ 750m swim / 23k bike / 5k run Sprint Paratriathlon 750m swim / 23km bike / 5km run Sprint Paratriathlon Relay 750m swim / 23km bike / 5km run Olympic Triathlon ​​1.5k swim / 40k bike / 10k run Olympic Aquabike 1.5k swim / 40k bike Olympic Duathlon​​ 5k run / 40k bike / 10k run *NEW* - Olympic Aquathlon 1.5k swim / 10k run Olympic Relay​​ 1.5k swim / 40k bike / 10k run Half Triathlon ​​1.2 mile swim / 56 mile bike /13.1 mile run Half Aquabike​​ 1.2 mile swim / 56 mile bike Half Duathlon​​ 5k Run / 56 mile bike / 13.1 mile run *NEW* - Half Aquathlon 1.2 mile swim / 13.1 mile run Half Relay ​​1.2 mile swim / 56 mile bike /13.1 mile run Date and Time: On Sun, 24 Aug 2025 07:00 - 15:30 Venue details: 370 Lakeside Park, 1000 Lakeside Park Drive, St. Peters, Missouri, 63376, United States