
From the Organizer
In partnership with the City of Ballwin, MSE Racing is excited to host the iconic 27th annual Ballwin Triathlon. The USAT sanctioned Ballwin Triathlon is a 300 yard pool swim, 9 mile bike, and 3.4 mile run. This race is very popular and fills up to capacity almost every year. Be sure to secure your spot early.
IT'S BACK this year: the Double Triathlon. If you are looking for a greater challenge, here’s your opportunity! Participants will complete the Ballwin Triathlon course and then head back to the pool to complete the course a second time beginning with one lap around North Pointe’s lazy river.
For more information including, but not limited to race options, course maps, schedule of events, packet pickup/endurance expo, volunteer - signup, sponsorship info, parking, etc. Please visit - https://www.mseracing.com/ballwin-triathlon
All athletes MUST show a Photo ID and pick up their own race packet, NO EXCEPTIONS.
Events
Weather
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
89°
Typical Low
70°
Chance of Rain
25%
Based on US Climate Normals data from St Charles 7 Ssw, 6 mi from the venue.
Host City
Population
30,835
as of 2023
Elevation
640 ft
Nearest Airport
STL
St. Louis Lambert International Airport · 14 mi
Time Zone
Central Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Race Location
Your Next Start Line
Every finish line starts with a single decision. Claim your spot at Ballwin Triathlon, put it on the calendar, and turn “someday” into a start date.
Coming Up
Chesterfield Youth Triathlon
4 miles away
St. Louis Triathlon
14 miles away
St. Luke's New Town Triathlon
12 miles away
MTC Zilla Tri
22 miles away
From Endurance Grid
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
Three sports, one race — swim, bike, run in sequence, with transitions that are a discipline of their own.
Open water, open roads, and competition with yourself. Cross the finish line knowing what it took to get there.
Swim, bike, run — back to back. The sprint distance makes it far more accessible than most people think.
Frequently Asked Questions (FAQs)
Ballwin Triathlon
Jul 19, 2026