Beach and Back Half Marathon & 5K 2025

Join RaceWire and Stack Endurance for the 9th annual Beach and Back Half Marathon & 5K on May 17, 2025 right off Brant Rock in beautiful Marshfield, MA! 

Enjoy scenic coastline views throughout the course. All Half Marathon registrants will receive a hoodie and 5K registrants will receive a unisex t-shirt. All registrants will also get an awesome custom finisher medal. After the race, enjoy a FREE beer at The Jetty restaurant and other snacks and refreshments provided. 

Half Marathon awards will be given to top 3 overall male/female runners and top male/female runners in each age group. 5K awards will be given to top 3 overall male/female runners.

If you still aren’t sure about the run, check out our amazing reviews and 4.6 Star Rating on Racecheck to hear what past runners have to say! We hope to see you there and good luck to all!

Or sign up for our Surf & Turf Series and get two for the price of one! The series includes the Beach and Back Half Marathon & 5K, plus our Run Through the Pines Half Marathon & 5K on April 20, at Myles Standish State Park in Carver, MA as well. Saving you up to $45 off! 

PRICING:

5K

$30 (until Feb 14 at 11:59 PM)

$35 (Feb 15 – Apr 17 at 11:59 PM)

$45 (Apr 18 – Race Day)

Half Marathon

$70 (until Feb 14 at 11:59 PM)

$75 (Feb 15 – Apr 17 at 11:59 PM)

$85 (Apr 18 – Race Day)

* There are no refunds but you are allowed to transfer your registration to another person.