_ The 2023 370 Lakeside Triathlon:

Join us for the 3rd annual 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! And this is a USAT Sanctioned Event.

Distances  / Race Options:

NEW - 5k Run

Super Sprint Triathlon
300M swim | 20K bike | 2 mile run
 
Sprint Triathlon
750M swim | 20k bike | 5k run

Sprint Aquabike (no run)
750M swim | 20k bike

Sprint Duathlon 
2 mile run | 20k bike | 5k run
 
Sprint Relay

Sprint Paratriathlon
 
Olympic Distance Triathlon
1.5k swim | 40k bike | 10k run

Olympic Distance Aquabike
1.5k swim | 40k bike

Olympic Duathlon (run/bike/run)
5k run | 40k bike | 10k run
 
Olympic Relay

Half Distance Triathlon
1.2 mile swim | 56 mile bike | 13.1 mile run

Half Distance Aquabike
1.2 mile swim | 56 mile bike 

Half Distance Duathlon
5k run | 56 mile bike | 13.1 mile run

Half Distance Relay

Join us on Saturday, August 26th at the 370 Lakeside Park under the main pavilion for a HUGE outdoor expo, packet pick up, and pre-race course talks.

The race weekend schedule:

370 Lakeside Triathlon – Expo and Race Day Schedule

Saturday, August 26th, 2023

10:00am - 12:00pm Open Water Swim Clinic Session

• 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! This event is open to all levels and is open to anyone. We offer a special discounted rate if you bundle and purchase the Open Water Swim Clinic Session when you register for the 370 Lakeside Triathlon.  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. 

12:00pm - 4:00pm MSE Lakeside 370 Triathlon Expo | Packet Pick Up | Bike Drop Off 

• We encourage athletes to pick up your packet today and drop off your bike today instead of race day! You can leave your bike in transition; we will have security all night to keep it safe. Leave gear at home, that comes with you race morning
• You CANNOT pick up someone else’s packet unless you are doing a relay.
• BRING: Photo ID
• Allow time for mandatory PRE-RACE TALK (1:30pm or 3:00pm) with Sally from MSE Racing & Stephe from BYLG Sport.
• Allow time to check out vendor tables.

Sunday, August 27th – RACE DAY

4:30am – Transition Opens – check in gear. Athletes only in the transition area, we will check your wrist band that you will find in your packet.

6:30am – Transition Closes – you will NOT be allowed back in.

6:20am – Swim warm up or splash in if daylight allows

6:30am – Athletes line up to start and pre-race announcements

6:45am – Para-athletes start

7am – Wave starts begin! 

ON COURSE NUTRITION:

• Water, Electrolyte Drink on the bike and run.

POST-RACE:

• Food, drinks, vendors and music under the pavilion! Invite family and friends! Athlete meals are included, a small fee for non-athletes.