Against the Tide

Join us for Against the Tide in 2018:

Registration is now open! Click the links below to register:

Against the Tide Hopkinton – June 16, 2018

Against the Tide Brewster – August 18, 2018

Interested in volunteering at Against the Tide? Please contact Cheryl Osimo at

Make a Pledge


Against the Tide is a family-friendly, multi-sport event to benefit the Massachusetts Breast Cancer Coalition (MBCC). MBCC is the only non-profit in the state dedicated to the prevention of breast cancer from environmental causes. The funds raised through Against the Tide help to support and expand our community education program Let’s Talk Prevention: Reducing Toxic Exposures, the MBCC Research Video Series, MBCC Webinar Series, and the newly-introduced environmental health program for high school students. We are grateful to all of you who help prioritize breast cancer prevention. Above and beyond your commitment to participate in the Against the Tide event, we hope that you will also fundraise on behalf of MBCC and our important mission to change the legacy of breast cancer for future generations.

Participants may register as individuals or enter as a team. You can choose to participate in one or more of the following event components:

  • 1/2 Mile Stand-up Paddle Board
  • 1 Mile Swim – Competitive
  • 1 Mile Swim – Recreational
  • 2 Mile Kayak – Recreational
  • 3 Mile Walk 
  • 5K Run (USA Track & Field certified)
  • 10K Run (USA Track & Field certified)
  • Aquathon 5K – Competitive 1-mile swim followed by 5K run
  • Aquathon 10K – Competitive 1-mile swim followed by 10K run

Online registration: Closes at noon on Friday before each event. After that time, please join us at the walk-in registration table at the event on Saturday morning. The event will be held rain or shine.

  • One event: Adults $40; Students $25*
  • Two events: Adults $80; Students $50*
  • Three events: Adults $120; Students $75*

Children under 10 years old may participate for free.

* Student ID must be shown on the day of the event to qualify for the student discount.

Important information for Kayak and Paddle Boards participants:

Hopkinton reservations for kayaks and paddle boards are now closed. If you plan to register for either of these components please note that there will be a very limited number of kayaks and paddle boards available the morning of the event on a first come, first serve basis. Participants are welcome to register and bring their own kayaks and paddle boards to the event.

The last day to reserve kayaks and paddle boards for the Brewster event is Monday, August 13, 2018, for the Brewster event.

Minimum age to ride in a single kayak is 13 years old and to ride in a tandem kayak is 5 years old when accompanied by an adult. Parental waiver forms must be signed for children under 18 years old to participate in the kayak event. Parental waiver forms will be available at the registration tent on the day of the event.

For Against the Tide registration help, please contact the First Giving Support Team at 877-365-2949 or

Special Registration Incentives from Vibram!

Register on or before June 1 for Against the Tide Hopkinton or Against the Tide Cape Cod and be entered into a drawing for a chance to win a pair of shoes from Vibram! One winner will be selected for Hopkinton and one will be selected for Cape Cod. Winners will have a choice of 1 pair of either the V-Aqua or the V-Run style. 


Important Links:

Swim Kayak Walk Run

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