Maine
Maine Triathlon Calendar 2026-2027
Monthly updates for Maine
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in Maine for 2026-2027! Our updated list features 4 exciting races across the region. Find your next race in Maine below and join the running community at these great events!
August 2026
A community triathlon at Pemaquid Beach Park offering a 400-yard swim, 17.4-mile bike, and 3.1-mile run, with individual and three-person relay options, chip timing, awards by age group, and proceeds supporting a playground fund.
September 2026
A weekend triathlon and running festival at Spring Hill, South Berwick, ME, featuring sprint and Olympic races, relays, multiple road runs, lake swims, and a post-race brunch.
July 2027
IRONMAN 70.3 Maine in Augusta features a fast Kennebec River swim, a 56 mile bike and a 13.1 mile rolling run with strong local spectator support.
Sea to Summit blends a 1.2 mile swim and 95 mile bike with a run and climb to Mount Washington; entry requires recent Ironman or 70.3 qualification.
Monthly updates for Maine
Get new running races (and updates) in your inbox every month.