Connecticut
Connecticut Triathlon Calendar 2026-2027
Monthly updates for Connecticut
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in Connecticut for 2026-2027! Our updated list features 8 exciting races across the region. Find your next race in Connecticut below and join the running community at these great events!
May 2026
Join TriRidgefield in Ridgefield CT on May 31, 2026 for a sprint swim in Great Pond followed by bike and 5K run on scenic roads and paths. Individual, relay and duathlon entries welcome for ages 13 and up.
Take on an Olympic distance triathlon in scenic New Hartford with a 1500 m swim in West Hill Lake, a 40K bike and a 10K run on rural roads. AquaBike, relay teams and paratriathletes are welcome for a friendly, well produced race.
Join the 25th annual Lake Terramuggus Sprint Triathlon on July 16, 2026 at Blish Park in Marlborough CT. Choose sprint, super sprint, relay or aqua bike and enjoy a scenic lake swim, rolling bike loops and a lakeside 5K.
August 2026
Take on the classic Olympic distance triathlon at scenic Lake Terramuggus with a 1600 yard swim, 25 miles bike and 10K run. Relay and aquabike options and a moderately hilly course make for a rewarding day of racing.