This is not a race for beginners. Required for entry into Sea to Summit is the completion of a non-abbreviated 140.6 (“Ironman”) triathlon or a 70.3 distance triathlon with results that show you were in the top 60% of your age group. Additionally your finish time must be better than 13:50 (140.6) or 6:00 (70.3). These qualifying events must have been completed after Jan. 1, 2019. Sea to Summit racers who raced from 2014 to 2024 and finished within the race’s time limit are pre-qualified, as well as any athlete who has qualified for the Ironman World Championships (140.6 or 70.3) during that period. Athletes with a current or former pro card are automatically pre-qualified. The race directors do (rarely) allow entries for athletes who have completed other recent races of similar difficulty if they are convinced the athlete likely has the ability to reach the checkpoints before the cut-off times (see the Race Details page). But you must contact us beforehand! Athletes must be 18 years of age or older.

Qualifications standards for relay teams are different from individual requirements. See the registration page for details.

These days, finding affordable housing is nearly impossible for many families. That is why we have made Habitat for Humanity our Charity Partner this year.

Habitat for Humanity is a nonprofit organization that helps families build and improve places to call home. They believe affordable housing plays a critical role in strong and stable communities — and we couldn’t agree more!

A wonderful element of Habitat’s process is that they truly partner with families in need of an affordable home to build one of their own. Habitat homes are underway throughout New England and the U.S. We are pleased to assist them in this pursuit.

We appreciate your help in supporting what Habitat does for our community.