Maine Triathlon Calendar 2026-2027

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Monthly updates for Maine

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Explore the best triathlons in Maine for 2026-2027! Our updated list features 9 exciting races across the region. Find your next race in Maine below and join the running community at these great events!

May 2026
The Polar Bear Triathlon and Duathlon kicks off the New England multi-sport season on the campus of Bowdoin College. The sprint-distance event features a pool swim, a bike ride on coastal roads, and a run on trails. It offers various formats includin..
June 2026
Event Overview The Lawroweld Triathlon takes place on June 14, 2026. The event is held at Camp Lawroweld in Weld, Maine, which is situated near the Tumbledown, Jackson, and Little Jackson mountain range with frontage on Lake Webb. Distances The event..
Experience a premiere multisport weekend at St. Joseph's College featuring swim legs in the clear waters of Sebago Lake and scenic runs through wooded campus trails. Choose from Olympic and Sprint distances for triathlons, duathlons, and relays.
July 2026
Experience a USAT sanctioned sprint triathlon at Lake Pennesseewassee Park. This event features a 750 meter swim, a 20 km bike ride, and a 5 km run for individuals and relay teams.
Experience an adventure style triathlon featuring a 1.2 mile swim, a 95 mile bike, and a run up Mount Washington. This high endurance event requires a support porter and specific qualification standards for all participants.
Experience an award winning swim in the Kennebec River followed by a scenic rural bike course. This New England triathlon ends with an iconic finish at the Maine State Capitol in Augusta.
August 2026
Held among the islands of Maine's Casco Bay, this swimrun event is noted as America's first official swimrun. Participants island-hop across a course of ocean swims and rocky trail runs. Three distances are offered, from a shorter Experience course t..
Experience America's original swimrun at Casco Bay Islands with World Series, Sprint, and Experience distances for teams and solos. Join the action in Maine or watch from a dedicated spectator boat.
A multi-format triathlon in Lincoln, Maine, with Olympic, Sprint and Half Ironman distances plus relay and duathlon options; the event is postponed with a new date to be announced and registrations preserved.