Massachusetts · Half Marathon · 5K
The Mass Half
The Mass Half is a half marathon and 5K event held in Worcester, Massachusetts. Its next confirmed date is Sunday, March 21, 2027. About 2,300 runners take part across all distances.
- Race day
- March 21, 2027
- Location
- Worcester, MA
- Field size
- ~2,300 runners
Race details
- Date
- Sunday, March 21, 2027
- Location
- Worcester, Massachusetts
- Distances
- Half Marathon, 5K
- Field size
- About 2,300 runners
- Registration
- runsignup.com
- Official website
- unitedwaycm.org
Registration, course & weather
- Start time
- 7:30 AM EDT
- Course profile
- Loop course; Road surface
About the The Mass Half
CENTRAL MASS IS READY FOR A RACE OF ITS OWN For the first time in more than a decade, runners will once again have the chance to race a half marathon in Worcester. Set in the spring and timed with the Boston Marathon season, The Mass Half offers a unique opportunity to train, race, and celebrate in the Heart of the Commonwealth, whether you’re pursuing a personal best, preparing for Boston, or simply looking for a great reason to run. But the experience extends well beyond the course. With thou…
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Keep exploring
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- 10Ks in Massachusetts 12 upcoming races
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- Spring Half Marathons
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Guides from the RaceRove blog
- 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.
- 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.
- 9 min read How to Run a Race in All 50 States How to plan a 50-state running challenge: set your own rules, group states into trips, build a calendar around the seasons, budget for it and keep track of every finish.
- Blog All guides Planning advice for finding, choosing and travelling to races.
The Mass Half: common questions
- When is the The Mass Half?
- The next confirmed date is Sunday, March 21, 2027.
- Where is the The Mass Half held?
- In Worcester, Massachusetts.
- What distances does the The Mass Half offer?
- Half Marathon and 5K.
- How many people run the The Mass Half?
- About 2,300 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the The Mass Half?
- Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
- What time does the The Mass Half start?
- 7:30 AM EDT.
- What is the course like at the The Mass Half?
- Loop course; Road surface.
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.