Open Water Swim - 370 Lakeside Park
- Date
- August 22, 2026
- Distance
- Open Water Swim Clinic Session at 370 Lakeside Park
From the Organizer
Join MSE Racing and Coach Sally Drake for an open water swim session/clinic at beautiful 370 Lakeside Park in Saint Peters.
We will kick off 370 Lakeside Triathlon and Expo weekend with an optional swim clinic to help newbies prepare and gain helpful tips for open water swimming and race day strategies. For those with experience, just swim and enjoy! We will have a couple of buoys for use at the clinic session, but not full access to the triathlon swim courses because the park will be open to the public that day.
This event is open to anyone at any level. We offer a special discounted rate for athletes participating in the Lakeside 370 Triathlon if you bundle and purchase the Open Water Swim Clinic Session when you register for the 370 Lakeside Triathlon.
During the session lifeguards and volunteers will be in the water to ensure the safety of the participants, there will also be buoys setup in the water to practice sighting. After the swim, please stick around for the MSE Lakeside 370 Triathlon Expo.
For more information please visit - https://www.mseracing.com/370-lakeside-open-water-swim
Events
Weather
Typical Conditions
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
87°
Typical Low
65°
Chance of Rain
27%
Based on US Climate Normals data from St Peters 2 Se, 2 mi from the venue.
Host City
About Saint Peters, MO
Population
58,200
as of 2023
Elevation
493 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
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Open Water Swim - 370 Lakeside Park, put it on the calendar, and turn “someday” into a start date.
75
Days to train
- Race
- Open Water Swim - 370 Lakeside Park
- Date
- August 22, 2026
Coming Up
More Swimming races near Saint Peters, MO
Open Water Swim #2 - Innsbrook Resort
22 miles away
Central Illinois Open Water Swim
154 miles away
Open Water Swim CHICAGO
263 miles away
Open Water Swim #3 - Innsbrook Resort
22 miles away
From Endurance Grid
About This Sport
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.
Swimming events drop you into something that demands navigation, feel, and focus all at once. It's a sport that rewards the quietly competitive — the ones who do the work in the water before anyone's watching.
Open Water Swimming
Open water races from 1 mile to marathon distance. Just you, the water, and whatever you've got left.
Frequently Asked Questions (FAQs)
- What is the Open Water Swim - 370 Lakeside Park?
- Open Water Swim - 370 Lakeside Park is a swimming race held in Saint Peters, Missouri on August 22, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more swimming races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Open Water Swim - 370 Lakeside Park?
- Saturday, August 22, 2026 in Saint Peters, Missouri at 1000 Lakeside Park Drive, Saint Peters, MO. Check the event page for exact start times and wave schedules.
- How do I register for the Open Water Swim - 370 Lakeside Park?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Open Water Swim - 370 Lakeside Park
Aug 22, 2026