Date
Sat, 31 Jul 2027
Start
05:30
Venue
South Berwick, Maine to the Mount Washington summit, New Hampshire
New Hampshire
Countdown
July
A triathlon that starts in the sea and ends on top of Mount Washington. Nearly 3,200 m of climbing on a point-to-point route, with a relay option if you'd rather share it.
Key facts
01Solo entry needs a past 140.6 in 14:45 or less, or a 70.3 in 6:30 or less, since 2022
02Bring a designated porter and a USA Triathlon membership (annual or one-day)
03Cut-offs: swim 06:30, Wildcat 13:00, Hermit Lake 14:30, summit 16:30
Create a free training plan for the Sea to Summit Triathlon
7-day free trial, no card required
The course
The route
New Hampshire
Distance164km
Total climb3,139m
StartElevation
0 kmDrag map to rotate160.4 km
Weather
Late-July, New Hampshire
25°CTypical high
15°CTypical low
8°CColdest in 20 years
49%Days with rain
Highs around 25°C and lows around 15°C, but it has dropped to 8°C. Rain on 49% of days.
NASA POWER data, 2006-2025, the week either side of race day
2026 results
Who finishes, and how
#TeamLapsTime
01Kristin Kurokawa308:09:45
02Caitlin Mahoney308:47:43
03Katherine Boy308:48:24
13
Women finishers
9:48:49
Median time
3 laps
Median laps
Women · 2026 results, as published by the organiser.
How many laps could you do?
Get a prediction based on your recent training
Organiser
Training
Training for the Sea to Summit Triathlon
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a Sea to Summit Triathlon plan targets
Typical sessions
164 km with 3,139 m of climbing
Endurance and fatigue resistance over the full distance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long endurance rides building toward the full distance
Threshold and sweet-spot work for sustained power
Sustained climbing repeats on real gradients
Group rides for drafting and bunch-riding skills
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your Sea to Summit Triathlon plan.
7-day free trial, no card required.
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