SOS Cape Cod Triathlon


Saturday, June 4, 2022

Saturday, June 4, 2022 at 07:00 AM


07:00 AM

Mayo Beach
Kendrick Avenue
Wellfleet, MA, 02667
Registration for this event is closed
Event Information
Following in the footsteps of the acclaimed SOS Triathlon® in New York, SOS Cape Cod is a point-to-point adventure race using all three disciplines of triathlon to cross 38 miles of the spectacularly scenic Cape Cod National Seashore. Here, you begin your journey with a bike ride, followed by a series of trail runs and fresh-water swims before ending back in Wellfleet for a post-race meal and after-party. Due to the rigorous nature of this race there are qualification standards: please read them carefully.
Event Summary

Like the original SOS event, the race starts with a bike leg; which will leave from Mayo Beach on Cape Cod Bay in the village of Wellfleet. You’ll follow mostly back country roads to Provincetown, then to Truro. Racers will leave their bikes with their support person and venture onto the sandy trails of the National Seashore. Total running is nine miles. Along the way you will encounter glacier-created kettle ponds which will require three swims: each either a quarter or a half-mile. You’ll finish with a run along a quiet road to the finish line at Wellfleet Elementary School. You and your support person can then enjoy a post-race meal at the after-party and awards ceremony.

Qualification Standards

As part of your registration for this race, you will need to provide official documentation showing you have completed within 60 months of race day, or will complete at least 6 weeks before the race, one of the following: a standard Olympic-distance race in 3:20 or less (or adjusted time if a non-standard Olympic); a half-Ironman in 6:45 or less; or an Ironman-distance race in 15:00 or less.

Required of Competitors

Each competitor must designate a support person, or porter,  with vehicle to park in designated areas during the race, to be present at the first transition stop to take your bike, and to be present at the finish line.

SOS History

The SOS Triathlon, founded in 1983 by Don Davis is widely considered to be one of the sport’s most iconic events. Held every September in the rugged hills bordering New Paltz, New York, this eight-stage triathlon (bike-run-swim-run-swim-run-swim-hill climb) attracts some of the world’s best athletes — as well as individually-minded age groupers looking for a challenge unlike anything else.

Transfer/Refund Policy

No transfers, substitutions or deferments permitted.

Bike Route

• Starts at Mayo Beach, Wellfleet, Cape Cod
• Winds through the narrow streets of this old fishing village before following one of the oldest (and most isolated) roads in New England along Cape Cod Bay to Truro
• Follows the bike lane of the Mid Cape Highway to North Truro
• Enters the North Highlands area of Truro, on quiet windswept roads
• From North Truro, follows Shore Road to Provincetown
• At the Harbor Inn, turns to head back to North Truro
• Follows the bike lane of the Mid Cape Highway for a short stretch
• Enters onto quiet, hilly roads by Castle Hill and Corn Hill — the first place in North America visited by English explorers
• In Truro Center, crosses over to the Ocean side of the Cape (the “Backside”)
• Finishes on Collins Road in Lower Truro, where athletes will meet their support designates and exchange bikes for running/swimming gear

Run/Swim Route
Racers will embark on a combination run/swim effort (9 miles of running, 1.25 of swimming, across seven legs) through the Cape Cod National Seashore lands in Truro and Wellfleet. The runners will be following existing footpaths and both dirt and paved roads, with the last run leg entirely on paved roads

• Run #1: Truro Highlands, 4 miles• Swim #1: Gull Pond, 0.5 mile
• Run #2: Fire Roads, 2.5 miles
• Swim #2: Great Pond, 0.25 mile
• Run #3: Way 625, 1.5 miles
• Swim #3: Long Pond, 0.5 mile
• Run #4: Long Pond Road, 1 mile
• Finish at Wellfleet Elementary School

Rain Date

There is no rain date. Race management reserves the right to modify or shorten the race course in case of inclement weather or unforeseen circumstances. This has happened often, and athletes should be aware of — and accept — the possibility.

Field Limit
150 athletes will be allowed at SOS Cape Cod. The SOS race in NY sells out in minutes every year.
Post Race
Athletes and their support person are invited to an after-party for a post-race meal and awards ceremony. Meals for additional family members/friends may be purchased in advance for $30.
Finisher Honors and Awards
All SOS Survivors receive a T-shirt and finisher plaque.  Awards will be presented to top three competitors overall and in each age group (both male and female).
Results will to be posted to

We love our volunteers!  Friends and family members of athletes, past participants and curious future participants are all encouraged to volunteer and watch the action up close!  T-shirt, refreshments, swag bag and a post-race meal are only some of the perks!  Contact for more information.


For those traveling from afar, Cape Cod is awash with hotels, motor lodges, inns, bed and breakfasts, vacation cottages and AirBnB offerings.


It is important to keep athletes, volunteers and staff safe! As guidelines shift for events of this type we will update this race's website page and post to Facebook.

SOS Cape Cod Triathlon