370 Lakeside Triathlon
Saint Peters, Missouri
Sunday, August 23, 2026
Organizer's Description
Join us for the 6th annual USAT sanctioned 370 Lakeside Triathlon! Enjoy the flattest, fastest course starting in beautiful 370 Lakeside Park! Enjoy a beach start, amazing country roads in St. Charles County, and a run that includes the park trails. We offer a variety of race options from a 5k run, super sprint or sprint for newbies, up to half distance along with duathlon, aquabike and aquathlon options!
For more information including course maps, schedule of events, race options, volunteer signup, etc. Please visit - https://www.mseracing.com/370-lakeside-triathlon
All athletes MUST show a Photo ID and pick up their own race packet, NO EXCEPTIONS.
Race Events
SPRINT PARA MY TEAM TRIUMPH
Start Time: 6:45:00 AM
SPRINT PARA TRI
Start Time: 6:45:00 AM
SUPER SPRINT INDIVIDUAL TRI
Start Time: 6:45:00 AM
OLYMPIC RELAY TRI
Start Time: 7:00:00 AM
HALF INDIVIDUAL TRI
Start Time: 7:00:00 AM
SPRINT AQUATHLON
Start Time: 7:00:00 AM
SPRINT RELAY TRI
Start Time: 7:00:00 AM
OLYMPIC AQUABIKE
Start Time: 7:00:00 AM
SPRINT AQUABIKE
Start Time: 7:00:00 AM
OLYMPIC INDIVIDUAL TRI
Start Time: 7:00:00 AM
HALF AQUATHLON
Start Time: 7:00:00 AM
SPRINT COLLEGIATE TRI
Start Time: 7:00:00 AM
HALF RELAY TRI
Start Time: 7:00:00 AM
SPRINT INDIVIDUAL TRI
Start Time: 7:00:00 AM
OLYMPIC AQUATHLON
Start Time: 7:00:00 AM
SPRINT HIGH SCHOOL TRI
Start Time: 7:00:00 AM
HALF AQUABIKE
Start Time: 7:00:00 AM
HALF DUATHLON
Start Time: 7:30:00 AM
SPRINT DUATHLON
Start Time: 7:30:00 AM
5K RUN
Distance: 5K
Start Time: 7:30:00 AM
OLYMPIC DUATHLON
Start Time: 7:30:00 AM
Race Information
Date
Sunday, August 23, 2026
End Date
August 23, 2026
Location
Saint Peters, Missouri
1000 Lakeside Park Drive
63376
Location Map
📍 370 Lakeside Triathlon - Saint Peters, Missouri