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Triathlon Calendar near Stonington 2026-2027

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Monthly updates for Stonington

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Explore the top triathlons near Stonington for 2026-2027! We've gathered 3 exciting races in the area. Check out our detailed list below to find your next local race.

August 2026
Aug
9
Su

Niantic Bay Triathlon

Triathlon Aquabike 0.5 11.4 mi Sprint 0.5 11.4 3.2 mi
October 2026
Oct
4
Su

MightyMan Montauk

Triathlon Sprint 750 m 17 km Sprint 17 5 km Sprint 750 m 17 5 km Olympic 1.5 40 km
MightyMan Montauk is an annual triathlon festival at Fort Pond offering Olympic and Sprint triathlons plus an Aquabike option, with an out-and-back freshwater swim, bike loops through Montauk, and lake-adjacent run courses.
Oct
11
Su

Serpent's Back Mountain Bike Duathlon

Cross Duathlon Individual Duathlon 1.6 11.5 1.6 mi Duo 2 12 2 mi
A multisport event in Montauk on October 11, 2026 offering run-bike-run, bike-only and two-person relay options with apparel, results services and post-race amenities.
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