370 Lakeside Triathlon

  • Date Sun 17th August 2025
  • Time 6:45AM CDT
  • Location Saint Peters, Missouri
  • Price $36.29 - $311.18
  • Races 23 races
  • Distances Sprint, Olympic, 5km

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370 Lakeside Triathlon

Sun 17th August 2025

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Event summary

Get ready for an exhilarating day of athleticism at the 5th annual 370 Lakeside Triathlon on Sunday, August 17, 2025! Set against the stunning backdrop of 370 Lakeside Park in St. Peters, St. Charles, this USAT sanctioned event promises a flat and fast course that is perfect for athletes of all levels. Participants can choose from a variety of race distances, including a 5k run, super sprint, sprint for beginners, and even a half distance challenge! Additionally, options like duathlon, aquabike, and aquathlon ensure there's something for everyone. With a beach start and beautiful country roads, along with scenic park trails for the run, this event is not to be missed. Join us for a day filled with fun, fitness, and community spirit! For more details on race options and event schedules, be sure to check out the official website.

Organiser's Description

Join us for the 5th 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

Races

  • Super Sprint Individual Tri

    Incl. $10.04 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (6:45AM CDT)

    $135.04

    Book
    300 meter swim 23K bike 2 mile run

  • Sprint Individual Tri

    Incl. $11.05 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $151.05

    Book
    750M swim 23k bike 5k run

  • Sprint Para Tri

    Incl. $8.01 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (6:45AM CDT)

    $103.01

    Book
    750M swim 23k bike 5k run

  • Sprint Collegiate Tri

    Incl. $6.66 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $81.66

    Book
    750 meter swim 23K bike 5k run

  • Sprint High School Tri

    Incl. $6.66 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $81.66

    Book
    750 meter swim 23K bike 5k run

  • Sprint Para My Team Triumph

    Incl. $8.01 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (6:45AM CDT)

    $103.01

    Book
    750M Swim 23k Bike 3.1 mile run

  • Sprint Aquathlon

    Incl. $10.04 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $135.04

    Book
    Swim 750m Run 5K

  • Sprint Aquabike

    Incl. $10.04 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $135.04

    Book
    750M swim 23k bike

  • Sprint Duathlon

    Incl. $10.04 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:30AM CDT)

    $135.04

    Book
    2 mile Run | 23k Bike | 5k Run

  • Sprint Relay Tri

    Incl. $15.44 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $220.44

    Book
    750M swim 23k bike 5k run

  • Sprint Para Relay Tri

    Incl. $15.44 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (6:45AM CDT)

    $220.44

    Book
    750M swim 23k bike 5k run

  • Olympic Individual Tri

    Incl. $12.06 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $167.06

    Book
    Swim 1.5k Bike 40k Run 10k

  • Olympic Elite Triathlon

    Incl. $9.03 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $119.03

    Book
    Swim 1.5k Bike 40k Run 10k

  • Olympic Aquabike

    Incl. $11.39 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $156.39

    Book
    Swim 1.5k Bike 40k

  • Olympic Duathlon

    Incl. $11.39 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:30AM CDT)

    $156.39

    Book
    5k Run | 40k Bike | 10k Run

  • Olympic Aquathlon

    Incl. $11.39 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $156.39

    Book
    Swim 1500m Run 10K

  • Olympic Relay Tri

    Incl. $16.45 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $236.45

    Book
    Swim 1.5k Bike 40k Run 10k

  • Half Individual Tri

    Incl. $16.45 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $236.45

    Book
    1.2 mile swim 56 mile bike 13.1 mile run

  • Half Aquabike

    Incl. $13.75 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $193.75

    Book
    Swim 1.2 mile Bike 56 mile

  • Half Duathlon

    Incl. $13.75 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:30AM CDT)

    $193.75

    Book
    5k Run | 56 mile bike | 13.1 mile run

  • Half Aquathlon

    Incl. $13.75 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $193.75

    Book
    Swim 1.2 miles Run 13.1 miles

  • Half Relay Tri

    Incl. $21.18 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $311.18

    Book
    1.2 mile swim 56 mile bike 13.1 mile run

  • 5k Run

    Incl. $3.79 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:30AM CDT)

    $36.29

    Book

Book

  • Super Sprint Individual Tri

    Incl. $10.04 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (6:45AM CDT)

    $135.04

    Book
    300 meter swim 23K bike 2 mile run

  • Sprint Individual Tri

    Incl. $11.05 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $151.05

    Book
    750M swim 23k bike 5k run

  • Sprint Para Tri

    Incl. $8.01 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (6:45AM CDT)

    $103.01

    Book
    750M swim 23k bike 5k run

  • Sprint Collegiate Tri

    Incl. $6.66 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $81.66

    Book
    750 meter swim 23K bike 5k run

  • Sprint High School Tri

    Incl. $6.66 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $81.66

    Book
    750 meter swim 23K bike 5k run

  • Sprint Para My Team Triumph

    Incl. $8.01 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (6:45AM CDT)

    $103.01

    Book
    750M Swim 23k Bike 3.1 mile run

  • Sprint Aquathlon

    Incl. $10.04 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $135.04

    Book
    Swim 750m Run 5K

  • Sprint Aquabike

    Incl. $10.04 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $135.04

    Book
    750M swim 23k bike

  • Sprint Duathlon

    Incl. $10.04 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:30AM CDT)

    $135.04

    Book
    2 mile Run | 23k Bike | 5k Run

  • Sprint Relay Tri

    Incl. $15.44 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $220.44

    Book
    750M swim 23k bike 5k run

  • Sprint Para Relay Tri

    Incl. $15.44 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (6:45AM CDT)

    $220.44

    Book
    750M swim 23k bike 5k run

  • Olympic Individual Tri

    Incl. $12.06 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $167.06

    Book
    Swim 1.5k Bike 40k Run 10k

  • Olympic Elite Triathlon

    Incl. $9.03 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $119.03

    Book
    Swim 1.5k Bike 40k Run 10k

  • Olympic Aquabike

    Incl. $11.39 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $156.39

    Book
    Swim 1.5k Bike 40k

  • Olympic Duathlon

    Incl. $11.39 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:30AM CDT)

    $156.39

    Book
    5k Run | 40k Bike | 10k Run

  • Olympic Aquathlon

    Incl. $11.39 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $156.39

    Book
    Swim 1500m Run 10K

  • Olympic Relay Tri

    Incl. $16.45 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $236.45

    Book
    Swim 1.5k Bike 40k Run 10k

  • Half Individual Tri

    Incl. $16.45 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $236.45

    Book
    1.2 mile swim 56 mile bike 13.1 mile run

  • Half Aquabike

    Incl. $13.75 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $193.75

    Book
    Swim 1.2 mile Bike 56 mile

  • Half Duathlon

    Incl. $13.75 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:30AM CDT)

    $193.75

    Book
    5k Run | 56 mile bike | 13.1 mile run

  • Half Aquathlon

    Incl. $13.75 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $193.75

    Book
    Swim 1.2 miles Run 13.1 miles

  • Half Relay Tri

    Incl. $21.18 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:00AM CDT)

    $311.18

    Book
    1.2 mile swim 56 mile bike 13.1 mile run

  • 5k Run

    Incl. $3.79 Fee & Unisex Long Sleeve Hooded Shirt

    Sun 17th August 2025 (7:30AM CDT)

    $36.29

    Book

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Location

1000 Lakeside Park Drive, Saint Peters, 63376, MO, United States

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370 Lakeside Triathlon

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