TOSA Youth Tri

Thank you to all the sponsors, volunteers and athletes.

The 2023 TOSA Youth Tri was a great success, thank you to everyone who came together to make the day possible.  The 2024 TOSA Youth Tri is scheduled for Saturday, August 10th.  We hope to see you there!


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.

Our timing for 2023 is sponsored by:

We’re excited to have Mathnasium back this year as a sponsor of our Youth Tri! Mathnasium is currently enrolling students in their popular Summer Program. CLICK HERE for details.

A special thank you to our 2023 sponsors: