Swim, bike and run around beautiful Lake Mahopac in support of childhood cancer research. If a sprint triathlon is not your speed, join us for our 5K! The 5K is family-friendly, and allows for strollers on the course. The sprint triathlon brings together a combination of seasoned pros (our elite field is fierce!) as well as many beginners who are just getting their start in the triathlon world. It is typically a gorgeous morning with perfect fall-like weather in the Hudson Valley.
This is our 14th year of celebrating the important work being done to help change the landscape for children diagnosed with cancer. All proceeds support the Ty Louis Campbell Young Investigator Fund at New York-Presbyterian Weill Cornell.
Sep 19, 2026
Distance — Sprint Triathlon
Type — Multisports
07:00
$125.00
Sep 19, 2026
Distance — Sprint Triathlon Relay
Type — Multisports
07:00
$160.00
Sep 19, 2026
Distance — 2.7 Miles
Type — Multisports
09:30
$45.00
These values represent the 3-year monthly averages for September in Mahopac.
Learn more about the host city, Mahopac.
Mahopac is a hamlet in the town of Carmel in Putnam County, New York, United States. Also known as Lake Mahopac, the exurb is a part of the New York City metropolitan area. On U.S. Route 6 at the county's southern border, connects with Westchester County. As of the 2020 census, the population was 8,933.
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location_on Valley Cottage, New York, US
calendar_today Sep 12, 2026
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