34th Annual Hopkinton Against the Tide

Event Details

Against the Tide is a family-friendly, multi-sport event to benefit 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, MBCC Webinar Series, and the newly-expanded student environmental health program, Let’s Talk Prevention: Actions You Can Take.

Refunds are not allowed for this event. The participation of minor children under the age of 18 in the Against the Tide events must be authorized by a parent or guardian, and the parent/guardian must sign the Release and Indemnity Agreement. There is no early bib pickup — bibs can be picked up at registration the morning of the event. Wetsuits are permitted. No dogs or other pets, with exception of service animals, allowed on beach. Participants can create or join a team during the registration process on Race Roster. Please note that new teams cannot be created after registration is complete. Online registration closes at 5:00 PM the evening of June 19th. Walk-in registration is welcome the morning of the event at the registration tent starting at 7:00 AM.

Events Include:

• USMS-Sanctioned 1-mile swim
• 1-mile recreational and competitive swims
• ½-mile recreational swim
• USATF-Certified 5K and 10K runs
• 3-mile fitness walk

Event Schedule

• Sat, June 20, 2026 7:00 AM - Registration
• Sat, June 20, 2026 7:25 AM - Opening Remarks & Honors
• Sat, June 20, 2026 7:35 AM - Warm-Ups
• Sat, June 20, 2026 7:45 AM - National Anthem
• Sat, June 20, 2026 8:00 AM - Swim Events
• Sat, June 20, 2026 9:00 AM - USATF-Certified 5K/10K Runs
• Sat, June 20, 2026 9:05 AM - 3-mile Fitness Walk