Massachusetts · Half Marathon
Half Marathons in Massachusetts
Massachusetts currently has 26 upcoming half marathons with a confirmed date listed in RaceRove. Gloucester, Newburyport, Boston and Ipswich have the largest concentration of events.
November (6), May (5) and April (3) are the busiest months on the calendar right now. Another 7 annual half marathons are waiting for next year's date to be announced.
- Upcoming, date confirmed
- 26
- Active listings
- 33
- Cities with races
- 26
More ways to browse Massachusetts
Upcoming half marathons in Massachusetts
All 26 with a confirmed date, soonest first.
Dates come from each race's own listing. Always confirm on the organiser's site before you book travel.
Largest half marathon events in Massachusetts
By estimated field size across all distances at the event.
When half marathons happen in Massachusetts
- March
- 2 upcoming races
- April
- 3 upcoming races
- May
- 5 upcoming races
- June
- 2 upcoming races
- August
- 1 upcoming race
- September
- 3 upcoming races
- October
- 2 upcoming races
- November
- 6 upcoming races
- December
- 2 upcoming races
Massachusetts cities with the most half marathons
- Gloucester
- 3 upcoming races
- Newburyport
- 3 upcoming races
- Boston
- 2 upcoming races
- Ipswich
- 2 upcoming races
- Amesbury
- 1 upcoming race
- Cambridge
- 1 upcoming race
- Carver
- 1 upcoming race
- Haverhill
- 1 upcoming race
Annual events awaiting their next date
These half marathons are held every year, but the next date isn't in the listing yet. The month shown is when each is usually held.
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Around Cape Ann Half MarathonGloucester, MA Usually held in October · next date not announcedHalf Marathon ~750 runners
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Nantucket Half MarathonNantucket, MA Usually held in October · next date not announcedHalf Marathon ~300 runners
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The Apple Harvest Ramble Half Marathon and 5KHarvard, MA Usually held in September · next date not announcedHalf Marathon5K ~150 runners
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Happy Valley Half Marathon & 5KNorthampton, MA Usually held in October · next date not announced5kHalf Marathon
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Run to the RockMarshfield, MA Usually held in September · next date not announced1/2 Marathon (all participants)10K Adult (18+)10K Senior (70+)10K Student (17 & under) +2 more
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Tree House Brewing Company Half MarathonDeerfield, MA Usually held in September · next date not announced2026 Participant - Add Spectator TicketTree House Brewing Company Half MarathonWaitlist for the 2026 Tree House Half
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Wild Bill Swim & Paddle ChallengeBrookfield, MA Usually held in August · next date not announced400 yd Open Swim - Out and Back ($25)Half (1/2) Mile Open Water Swim ($30)One (1) Mile Paddlers Loop Challenge ($40
Half Marathons in nearby states
Guides from the RaceRove blog
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 8 min read How to Choose the Best Half Marathon for a PR, Racecation or 50-State Challenge The best half marathon depends on what you want from it. How to choose a course for a personal record, a race worth travelling for, or an efficient stop on a 50-state challenge.
- 4 min read Diplo's Run Club 2026-27: Every City, Date and Course Diplo's Run Club is a 5K with a post-race concert. Every US date for 2026-27 (San Francisco, New York, Los Angeles, San Diego and Phoenix), start times and courses.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Half Marathons in Massachusetts: common questions
- How many half marathons are there in Massachusetts?
- RaceRove currently lists 26 upcoming half marathons in Massachusetts with a confirmed date, plus 7 annual events whose next date hasn't been announced yet.
- How long is a half marathon?
- A half marathon is 13.1 miles (21.1 kilometres).
- Which Massachusetts cities have the most half marathons?
- By upcoming events listed in RaceRove: Gloucester (3), Newburyport (3), Boston (2), Ipswich (2) and Amesbury (1).
- When is half marathon season in Massachusetts?
- Of the upcoming half marathons listed, the busiest months are November (6), May (5) and April (3).
- What is the biggest half marathon in Massachusetts?
- By estimated field size, the largest event with a half marathon listed in Massachusetts is the TTP Cambridge Half Marathon + 5K, with about 10,000 runners across all of its distances.
Search every half marathon in Massachusetts
Filter by month, course profile and field size, save races to a shortlist and compare them side by side in the interactive search.