Join us this summer for our fourth annual kids triathlon! The race starts at 8:30 a.m., and athletes will swim in our outdoor pool, ride their bikes along a gravel rail trail, and finish by running along a gravel road around the Club facility. Event will be rain or shine! We welcome kids ages 5-18 to participate - the age group breakdown is: Ages 5-8 - swim 50 yards, bike 1.5 miles, run .50 mile Ages 9-11 - swim 100 yards, bike 1.5 miles, run 1 mile Ages 12-14 - swim 150 yards, bike 1.5 miles, run 1 mile Ages 15-18 - swim 200 yards, bike 1.5 miles, run 1.5 miles Please note per USA Triathlon rules kids will race as of their age on December 31st, e.g., if your child is 8 on August 23rd, but will turn 9 in October, he/she would be registered in the 9-12 age group. All registrants will receive a complimentary race swim cap and finishers' medal. Are your kids interested in racing, but not sure they can do the whole distance on their own? Please contact us about creating a relay team!
Hotels Near This Race
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Kingsbury Club Summer Youth Triathlon 2026 — Medfield, MA
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Race Travel Insurance
Don't forget travel insurance for August 23.
You've trained for months and booked a trip to Medfield, MA.
A pre-race injury, a delayed flight, or a family emergency can derail the whole thing.
Travel insurance can help cover your race entry fee, hotel, and flights if you can't make it,
and may cover medical costs if something goes wrong on the course. Plans typically only run
5-7% of your total trip cost — and running events are covered under standard plans with no
additional coverage needed.
Trip cancellation up to 100% of prepaid costs
Running events covered under standard plans — no add-ons needed
Trip interruption up to 150% of non-refundable costs