Groton
Triathlon Calendar near Groton 2026-2027
Monthly updates for Groton
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Groton for 2026-2027! We've gathered 4 exciting races in the area. Check out our detailed list below to find your next local race.
September 2026
A USA Triathlon sanctioned sprint triathlon at Madison Town Beach with swim, bike and run options, plus aquabike and a youth try division with adult companion.
Olympic and Super Sprint triathlons in Sag Harbor NY with swim bike and run courses, USAT sanctioning, an Aquabike option, and a required notarized waiver.
October 2026
A USAT sanctioned triathlon festival in Montauk on October 4, 2026 offering Olympic, Sprint, AquaBike and relay races around Fort Pond and local roads.
A fall mountain bike duathlon in Montauk on October 11, 2026, offering individual, bike-only and two-person relay formats with post-race amenities and awards.
Monthly updates for Groton
Get new running races (and updates) in your inbox every month.