TOSA Youth Tri


Our online registration is now open. The cost is $40, which includes $10 for an annual USA Triathlon membership. No refunds will be given once participants are registered.


Children ages 9 to 15 (as determined by their age as of Dec. 31, 2018, per USA Triathlon rules)


Children can choose between two distances, depending on their abilities.

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.

Bike/Helmet Drop-off on Friday Only

Packet Pickup and Bike (with helmet) Drop-off is Friday, Aug. 24, from noon to 8 p.m. in the Grand Hall at TOSA Pool at Hoyt Park, 1800 N Swan Blvd. Athletes cannot pick up packets for others. Athletes MUST drop off their bikes and helmets on Friday. There will be no bike and helmet drop-off on Saturday.

Schedule of Events

The fun begins Saturday morning, Aug. 25, 2018, at TOSA Pool at Hoyt Park. Detailed schedule and information will be emailed to participants closer to race date.


  • 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

Additional Links

Maps and Directions to TOSA Pool
USA Triathlon


Be a 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, Aug. 3, 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 this year is sponsored by:

Additional sponsors:

Tosa Pediatrics

Swim Clinic

In conjunction with TOSA Pool, the Wauwatosa Recreation Department is offering a class to help prepare participants for the swim portion of the TOSA Youth Tri. For the race, participants will choose to swim either a 100-yard (FUN) or 200-yard (CHALLENGE) for time. In this class, work on building endurance and speed. Timed swims at each class will check for improvement. $25 fee.

Day Dates Time Number
Tuesdays 7/31–8/21 11-11:45am 444510-03
Tuesdays 7/31–8/21 3-3:45pm 444510-04
Thursdays 8/2–8/23 11-11:45am 444510-05
Thursdays 7/31 – 8/21 3-3:45pm 444510-06
Mon. thru Thurs. 8/13–8/16 8-8:45am 444510-07
Mon. thru Thurs. 8/13–8/23 8:50-9:35am 444510-08
Mon. thru Thurs. 8/20–8/23 8-8:45am 444510-09
Mon. thru Thurs. 8/20–8/23 8:50-9:35am 444510-10

Register online with Wauwatosa Recreation Department. Search for the class number after selecting “Aquatics” under activity type.