Beach and Back Half Marathon & 5K
Race Date
May 17, 2025
Location
Marshfield, MA
The Experience
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.
Logistics
Race Day
Saturday, May 17, 2025
Start Time
7:30 AM
Start Location
277 Ocean St., Marshfield, MA, 02050
Course Info
USATF CertifiedCourse Type
Loop Course
Terrain
road
Difficulty
Ultra-Flat
Elevation Gain
0'
Net Drop/km
0 m (Flat)
Separation
0.8%
Also Offers
USATF Certified Course
MA23003BK · 2023 Beach and Back Half Marathon
Relatively flat with minimal net elevation change. Loop course — start and finish are close together.
Quality Score
Standout608 years running
~492 finishers a year
growing or steady
8% returning runners
USATF certified · 2 timing sources
runners from 1 state
winner 1:20:07
typical high 67°F
Race Day Weather
5-year historical avgStart (Low)
52°
Afternoon (High)
67°
Pleasant conditions — light layers at start, comfortable by finish
0.1"
Precipitation
13 mph
Wind
70%
Humidity
Historical Finish Times
How 3,249 finishers actually crossed the line across 8 years.
Most recent
2025
Total finishers
3,249
Median time
2:09:00
Latest turnout
492
States
3
Turnout by year
2017–2025
Hover the histogram to inspect specific finish times.
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