Hopkinton against the Tide
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34th Annual Hopkinton Against the Tide : Hopkinton State Park
The 34th Annual Hopkinton Against the Tide is a family friendly multi sport event held at Hopkinton State Park in Hopkinton, Massachusetts on June 20, 2026. The event raises funds for the Massachusetts Breast Cancer Coalition (MBCC), which focuses on preventing breast cancer from environmental causes. Funds support MBCC community education programs, a webinar series, and a student environmental health program called Let’s Talk Prevention.
Events offered include:
- USMS sanctioned 1 mile swim
- Competitive 1 mile swim
- Recreational 1 mile swim
- Recreational 1/2 mile swim
- USATF certified 5K run
- USATF certified 10K run
- 3 mile fitness walk
USATF certification codes are MA23007BK for the 5K and MA23006BK for the 10K. Route maps are provided for swim and run/walk courses. Registration fees for listed sub events are shown as $40 where pricing applies. Online registration closes the evening of June 19 and walk in registration is available the morning of the event; bibs must be picked up at on site registration the morning of the event. Refunds are not allowed. Minor participants require parent or guardian authorization and a signed release and indemnity agreement. Wetsuits are permitted. No pets are allowed on the beach except service animals. A small fee applies for transfers between sub events. Visit the organization's website for the most recent information.
