Maine
Maine Triathlon Calendar 2025-2026
Explore the best triathlons in Maine for 2025-2026! Our updated list features 3 exciting races across the region. Find your next race in Maine below and join the running community at these great events!
July 2026
Join IRONMAN 70.3 Maine in Augusta on July 26, 2026 for a fast downriver swim on the Kennebec River and a hilly bike plus rolling half marathon through scenic Maine. Finish at the State Capitol amid big local support and relay options.
August 2026
The Great Loon Triathlon at Lake Mattanawcook offers sprint to half Ironman races and duathlon options with relays. Postponed to a new date TBD; registered athletes keep entry or can transfer to other Lifestyle Sports Global events.
September 2026
Celebrate the 20th anniversary Pumpkinman Triathlon Festival in South Berwick, Maine, a cozy fall weekend featuring triathlons Saturday and a festive running festival Sunday. Choose sprint or Olympic triathlon or runs from 1 mile to a 30k, enjoy swag..
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