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TYathlon Sprint Triathlon & 5K

Mahopac, New York, United States

calendar_today 19 Sep, 2026

sell $45.00 – $160.00

About the Event

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.

Races Offered

Sprint Triathlon

Sep 19, 2026

straighten

Distance — Sprint Triathlon

terrain

Type — Multisports

timer

07:00

sell

$125.00

Sprint Triathlon Relay

Sep 19, 2026

straighten

Distance — Sprint Triathlon Relay

terrain

Type — Multisports

timer

07:00

sell

$160.00

Family-Friendly 5K

Sep 19, 2026

straighten

Distance — 2.7 Miles

terrain

Type — Multisports

timer

09:30

sell

$45.00

Weather History

These values represent the 3-year monthly averages for September in Mahopac.

thermostat Temperature

14.1° / 23.1°

wb_sunny Feels like

13.1° / 22.4°

light_mode Avg sunshine hours

8h 55m

water_drop Avg rainfall

4.0 mm

ac_unit Avg snowfall

—

air Avg wind speed

9.3 km/h (Light breeze)

opacity Sweat loss rate

Moderate

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Moderate (5.0)

humidity_mid Humidity

77.3%

wb_twilight Sunrise

06:35

nightlight Sunset

19:02

About 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.