Cohasset Triathlon

Date: Last held Jun 28, 2026, next date to be announced
Location: Cohasset, Massachusetts

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Official race website

Start location and course

345 Atlantic Avenue, Cohasset, MA 02025

Directions to the start

The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.

2025 results

All results

Individual

936

finishers

1:28:21

median

58:28

winning time

34% / 66%

women / men

Finish times, fastest to slowest. Each bar is a slice of the field; the dashed line is the median.

Relay Team 3 Person

finishers

1:23:52

median

59:35

winning time

–

women / men

Aggregated from official results (All Sports Events) for Cohasset Triathlon. Individual finisher names are not stored here.

How fast do you need to be at Cohasset Triathlon?

At the 2025 Individual, the fastest tenth finished in 1:12:49 or better, the top quarter in 1:19:29, and half the field in 1:28:21; the last tenth came in after 1:48:02.

At the 2025 Relay Team 3 Person, the fastest tenth finished in 1:06:39 or better, the top quarter in 1:17:13, and half the field in 1:23:52; the last tenth came in after 1:41:17.

Third place by age group, 2025 Individual
Age	Women	Men
Under 20	1:15:11	1:09:12
20-29	1:13:52	1:00:06
30-39	1:12:34	1:06:36
40-49	1:13:36	1:04:06
50-59	1:16:11	1:06:49
60-69	1:23:31	1:08:45
70+	n/a	1:28:21

Groups with fewer than five finishers are left out. Awards vary by race; check the race's rules.

What would my time get me?

Where a finish time would have placed in 2025.

EventFinish timeGenderAge group

Race details

Where: 345 Atlantic Avenue, Cohasset, MA 02025Map
Course: Road
Distances: Triathlon, Aquabike
Editions: 2026 (Jun 28, 2026), 2025 (Jun 22, 2025), 2024 (Jun 23, 2024), 2023 (Jun 25, 2023)
Status: The next edition has not been announced yet. Past events: Individual, Individual, Individual, Relay Team 2 Person, Relay Team 3 Person.

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Quick answers

When is Cohasset Triathlon?: The next date has not been announced.
How much does it cost?: See the registration page for current pricing.
What distances are offered?: Triathlon, Aquabike.
How big is it, and how fast?: In 2025, 936 athletes finished the Individual; the median finish was 1:28:21 and the winner finished in 58:28.
Where does it start?: 345 Atlantic Avenue, Cohasset, MA 02025.

From the organizers

KICK OFF THE SUMMER WITH 1,000+ ATHLETES IN THIS SENSATIONAL EVENT!