United States · Road half marathon · 21.0975 km
Boston Half Marathon
Boston, Massachusetts, United States
Boston’s half marathon trades the spring marathon’s route for a rolling course through the Emerald Necklace park system. Franklin Park anchors the start and finish. It is a race to pace with the terrain in mind: autumn views are generous, but they do not flatten the hills.
AthRecs race guide · Updated
Upcoming dates
Planning your race weekend? These are the announced dates through 2027. Follow the organiser’s link for the latest date and race-day details. All dates and start times are local.
At a glance
- City / location
- Boston
- State / district
- Massachusetts
- Distance
- 21.0975 kilometres / 13.1 miles
- Surface
- Road / surfaced paths
- Course profile
- Rolling
- Approximate field
- Unknown
How to enter Boston Half Marathon
These are the organiser’s entry routes. Check the linked page for the edition, opening dates, eligibility, fees and current availability.
General registration
Registration uses the B.A.A. Athletes’ Village. General places for 2026 have reached capacity.
Official entry informationCharity places
The organiser lists Team Dana-Farber and the Jimmy Fund as a remaining 2026 entry route; check current availability.
Official entry informationRoute and course
Starts and finishes in Franklin Park, using the Riverway, Jamaicaway and Arborway through the Emerald Necklace park system.
Past races and results
Official results archiveOpen the organiser’s results to find a runner, club or published category standing. At festivals with several distances, select the half marathon results.
Use the official archive above to find earlier editions and category results.
Race news, photos and video
Visit the organiser for race updatesCommon questions
When is Boston Half Marathon?
Confirmed upcoming dates: 8 Nov 2026. Dates are local to the race.
How do I enter Boston Half Marathon?
General registration: Registration uses the B.A.A. Athletes’ Village. General places for 2026 have reached capacity. Charity places: The organiser lists Team Dana-Farber and the Jimmy Fund as a remaining 2026 entry route; check current availability.
Where is Boston Half Marathon and how far is it?
Boston Half Marathon takes place in Boston, Massachusetts, United States. This guide covers the 21.0975 km half marathon (13.1 miles). Surface: Road / surfaced paths
What is the Boston Half Marathon course like?
Starts and finishes in Franklin Park, using the Riverway, Jamaicaway and Arborway through the Emerald Necklace park system. Rolling
How big is the field at Boston Half Marathon?
The approximate field is Unknown. A reliable runner estimate is not currently available in this guide.
Where can I find past Boston Half Marathon results?
The past races and results section links to the organiser’s results. Select the distance and edition for participant searches and published category standings.
Sources and race information
AthRecs is independent of the race organiser. This guide brings together the linked race information, results and reports. Source review: . Historical details are labelled by edition; current entry availability and final instructions remain with the organiser.
More half marathons in United States
Compare the route and scale of another race. Options in the same region appear first when available.
- Aramco Houston Half Marathon
Houston, Texas
City road course
Next date: 17 Jan 2027
Approximate field: Unknown
- Philadelphia Half Marathon
Philadelphia, Pennsylvania
City road course
Next date: 21 Nov 2026
Approximate field: Unknown
- Richmond Half Marathon
Richmond, Virginia
City road course
Next date: 14 Nov 2026
Approximate field: Unknown