TOSA Youth Tri

The 2024 TOSA Youth Tri is Saturday, August 10th, 8am – Noon

Please mark your calendars and plan on joining us for this fantastic, end-of-summer, community event.  Competitors ages 9 to 17* will have the opportunity to test their athletic abilities in a safe and fun setting.

*Participants must be between age 9 and 17 as of December 31, 2024.

Registration for the 2024 TOSA Youth Tri is now open. We hope to see you there!

Volunteers Needed!

Putting on an event like this would not be possible without the support of volunteers.  Parents, please consider signing up to volunteer. This is a great way to give back and see your athlete on the course. This is also a good volunteer opportunity for teenagers. If you would like to help out and support these fantastic youth athletes, we’d love to have you on board.  There are a variety of assignments to be filled.  Volunteer registration is now open.

Get ready!

TOSA Pool is offering a class to help prepare participants for the swim portion of the TOSA Youth Tri, being held on Saturday, August 10th at TOSA Pool. For the race, participants will choose to swim either a 100 yard (FUN) or 200 yard (CHALLENGE) for time. This class will work on building endurance and speed. Timed swims at each class will check for improvement.  Click on the button below and create a profile to register, then select “activities” to find the TOSA Youth Tri swim classes.


Swim 100 yards 200 yards
Bike 2 miles 4 miles
Run 0.62 mile 1.25 miles

Swimming: TOSA Pool at Hoyt Park’s outdoor 25-yard pool

Biking: Menomonee River Parkway, which will be closed to traffic

Running: Oak Leaf Trail and surrounding Hoyt Park lot. The course is subject to change at the discretion of the race director due to weather.


  • The athlete, the athletes’ bike helmet and a guardian must be present at the time of check-in on the day of the event – NO EXCEPTIONS.
  • Every child must have a parent or guardian over the age of 21 at the event.
  • Bike helmets are required during the biking portion.
  • Race will be held rain or shine, but thunder, lightning or heavy rain could cancel the event. There are no refunds.
  • The TOSA Youth Tri is USA Triathlon sanctioned. All USA Triathlon rules apply.

Contact Information

Kit Slawski
Phone: 414-302-9160

Be a TOSA Youth Tri Volunteer

Volunteer Registration Page

Additional Links

Maps and Directions to TOSA Pool
USA Triathlon

2024 Sponsors

Be a 2024 TOSA Youth Tri Sponsor!

Would you like to help kids try a tri? Would you like your logo to be seen by hundreds of parents of youth and tweens? Become a sponsor of the TOSA Youth Tri! We accept donations of all sizes, but all donors of $250 or more will have their logo on this website and on banners on race day. All donors of $500 or more will have their logo printed on the back of our competitor t-shirt. Donations must be received by Friday, July 26th, to be included on apparel. Proceeds from the TOSA Youth Tri benefit Friends of Hoyt Park & Pool, a 501(c)(3) organization. Donations are tax-deductible to the extent allowable by law.

A special thank you to our 2024 sponsors: