More About Against the Tide Multisport Event - Help to prevent breast cancer!

Join Massachusetts Breast Cancer Coalition (MBCC) in 2024 and swim, run, or walk to support breast cancer prevention!

MBCC will host its special 25th Anniversary Cape Cod Against the Tide event at DCR’s Nickerson State Park (at the new Cliff Pond location) on Saturday, June 8th, 2024 in Brewster, MA. The weekend after, join MBCC at DCR’s Hopkinton State Park on Saturday, June 15th for Against the Tide’s 32nd year!

Events include 1-mile recreational and competitive swims, ½-mile recreational swim, USATF-Certified 5K and 10K runs, and a 3-mile fitness walk.

Participants will receive an event t-shirt, bib, and goodie bag. Prizes will be awarded for the top swim and run finishers of the in-person events. Prizes will also be awarded to the highest fundraising team and the three highest fundraising individuals.

“I look forward to greeting our friends, old and new, for the 25th Anniversary on Cape Cod,” says Cheryl Osimo, MBCC's Executive Director. “As MBCC works to demand greater protection for future generations, anyone can support our mission towards cancer prevention by registering for MBCC's family-friendly events on Cape Cod or in Hopkinton – both events only one week apart from each other!”

Against the Tide events can be enjoyed by adults and children of all ages and abilities. Register now for one or more events at The registration fee is $40 per person per athletic component.

The funds raised through Against the Tide help to support and expand our community education program Let’s Talk Prevention: Reducing Toxic Exposures, MBCC Webinar Series, and the newly-expanded student environmental health program, Let’s Talk Prevention: Actions You Can Take.

MBCC was founded in 1991 as a non-profit organization dedicated to preventing environmental causes of breast cancer through community education, research advocacy, and changes to public policy.

To learn more about all of the registration options, to join or start a team, and to donate, please visit the MBCC website at or call 508-246-3047.

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To learn more, watch our intro video!