Half Marathon-by-the-Sea
Half Marathon-by-the-Sea offers a fast, flat course through historic towns and past pristine lakes.
Race Date
Sep 13, 2026
Location
Manchester-by-the-Sea, MA
Quick facts
- Date
- Sunday, September 13, 2026
- Location
- Manchester-by-the-Sea, Massachusetts
- Distance
- Half marathon (13.1 mi)
- Course
- Loop Course
- Terrain
- Mixed
- USATF certified
- Yes
- Finishers on record
- 4,609
Highlights
Good For
Atmosphere
Course
The Experience
The Half Marathon-by-the-Sea, first run in 2014 and now in its 12th edition, draws runners from about 26 states to Manchester-by-the-Sea, MA. With a median field size of around 855 finishers, this race has seen steady growth.
This certified course is known for its fast, flat profile, making it a prime location for personal bests. Runners will experience a scenic journey through the historic downtown of Manchester-by-the-Sea and past the tranquil freshwater lakes of nearby Hamilton. While the course is largely paved road, be aware of brief sections on gravel or dirt that require attention.
Despite some reviews noting open roads with minimal traffic, the overall production is considered well-organized. Runners can expect a tech shirt as part of the swag, and the race aims to provide a rewarding experience for those seeking a swift and scenic half marathon.
Race-provided description
Named for the host community of Manchester-by-the-Sea, the race provides scenic views. Race through the historic and charming downtown and past the pristine fresh water lakes in nearby Hamilton, MA.
Logistics
Race Day
Sunday, September 13, 2026
Start Time
9:00 AM
Giveaway
Tech Shirt
Start Location
Manchester Essex High School, Manchester-by-the-Sea, MA, 01944
Course Info
USATF CertifiedCourse Type
Loop Course
Terrain
mixed
Scenery
Small Town, Lake River
Surface
Paved, Dirt Trail
Difficulty
Ultra-Flat
Net Drop/km
+0.05 m
Separation
0.4%
USATF Certified Course
MA16006BK · Half Marathon By-The-Sea
Relatively flat with minimal net elevation change. Loop course — start and finish are close together.
Quality Score
Standout6912 years running
~855 finishers a year
growing or steady
6% returning runners
USATF certified · 7 timing sources
runners from 26 states
winner 1:15:05
typical high 73°F
Race Day Weather
5-year historical avgStart (Low)
60°
Afternoon (High)
73°
Warm — hydration strategy is key, start conservatively
0.1"
Precipitation
11 mph
Wind
78%
Humidity
Historical Finish Times
How 4,609 finishers actually crossed the line across 12 years.
Most recent
2025
Total finishers
4,609
Median time
2:04:56
Latest turnout
450
States
35
Turnout by year
2018–2025
Hover the histogram to inspect specific finish times.
Race Photos
Frequently asked
When is the Half Marathon-by-the-Sea?
The Half Marathon-by-the-Sea is held on Sunday, September 13, 2026, starting at 9:00 AM.
Where does the Half Marathon-by-the-Sea take place?
It takes place in Manchester-by-the-Sea, Massachusetts.
What distances does the Half Marathon-by-the-Sea offer?
The half marathon (13.1 miles).
Is the Half Marathon-by-the-Sea course flat and good for a PR?
The Half Marathon-by-the-Sea is a ultra-flat, loop course course. The course is USATF-certified, so finish times can be used for qualifying.
How many people run the Half Marathon-by-the-Sea?
HalfRuns has finish records for 4,609 runners who have completed the Half Marathon-by-the-Sea.
HalfRuns editorial — independent, no paid placement.
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