Sea to Summit Triathlon passes torch to New England Endurance Events

One of the sport’s iconic and most challenging races, the Sea to Summit Triathlon, will pass ownership to New England Endurance Events for 2018.

The event, which starts in chilly waters near the Maine coast and ends atop the highest mountain in the Northeastern U.S., is widely considered to be one of the most difficult one-day endurance events in the world. Distances consist of a 1.5-mile swim, 95-mile bike and 5.5-mile run/hike into the clouds to the summit of Mount Washington in the neighboring state of New Hampshire. Over the course of five to 12 hours the competitors will have ascended from sea level to a height of 6,288 feet.

Required of all racers is the completion of a triathlon of half-ironman distance or greater in the recent past, and that they are accompanied on race day by a support person — which the event calls the “sherpa.” There is no set route for the bike or the run; racers can plan their best route ahead of the event, and navigating the bike course is left to their own decisions and advice from their sherpa.

The race has traditionally been held in late June, and has sold out each year since the event was changed from a kayak-bike-run to a swim-bike-run in 2014. Andy Scherding of New England Endurance Events said the 2018 date will likely be announced in September of 2017, but that a first-come-first-served, non-binding waiting list will be maintained until the race date is announced. Those on the waiting list will be given first priority. Interested competitors may reserve their place on the waiting list by emailing

The current race website is, which will be updated this fall to provide details for the 2018 event.


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