Captain of the Castle
- Date Thu 20th August 2026
- Time 7:00PM EDT
- Location Boston, Massachusetts
- Price Free
- Races 1 race
Last chance to enter
Race day is fast approaching
Event summary
Get ready for an unforgettable evening of camaraderie and competition at the Captain of the Castle, happening on Thursday, August 20th, 2026, in beautiful Boston, Suffolk. This exciting unsanctioned relay race invites participants to embrace the thrill of night running as they navigate the iconic Castle Island harbor loop. Teams of four will tackle one mile each to vie for the title of "Captain of the Castle," making it a perfect event for friends and running enthusiasts alike!
Join the vibrant running community of Boston in this unique relay race, where you can either form your own team or register solo to be placed on a mixed-club team. With categories including Fastest Overall Team, Fastest Women/Non-Binary Team, Most Team Spirit, and more, there are plenty of opportunities to showcase your speed and team spirit. The race kicks off at 7 PM, with check-in starting at 6 PM, so make sure to arrive early! After the race, celebrate your achievements and share stories at the afterparty, details of which will be announced soon. Don’t miss out on this exhilarating night of running, friendship, and fun in Boston!
Join the vibrant running community of Boston in this unique relay race, where you can either form your own team or register solo to be placed on a mixed-club team. With categories including Fastest Overall Team, Fastest Women/Non-Binary Team, Most Team Spirit, and more, there are plenty of opportunities to showcase your speed and team spirit. The race kicks off at 7 PM, with check-in starting at 6 PM, so make sure to arrive early! After the race, celebrate your achievements and share stories at the afterparty, details of which will be announced soon. Don’t miss out on this exhilarating night of running, friendship, and fun in Boston!
Organiser's Description
Welcome to the CAPTAIN OF THE CASTLE, an unsanctioned relay race in the heart of Boston, presented by Endorphins Running and New Balance.
As the sun sets over Boston, runners will speed around one of the most storied loops in the city: the perimeter of the Castle Island harbor loop. Four runners, one mile each, to determine who will be the Captain of the Castle.
This is a night to bring the running communities of Boston together. Grab your crew of four and register as a relay team, or sign up solo and we'll place you on a mixed-club team.
There will be many ways to win, see if your team can snag a top prize:
* CAPTAIN OF THE CASTLE- Fastest Overall Team
* Fastest Women/Non-Binary Team
* Most Team Spirit
* Fastest Mixed-Club Team (4 runners from 4 different run crews)
* Closest to Predicted Time
Afterwards, we'll celebrate the evening at TBD, sharing drinks and stories to cap off an incredible running experience.
_FULL DETAILS:_
DATE: THURSDAY, AUGUST 20TH
RACE KICKOFF: 7PM
CHECK-IN BEGINS: 6PM
ROUTE: OUT AND BACK - WITH A LOOP AROUND HEAD ISLAND
MEETING LOCATION: CASTLE ISLAND BEACH, SOUTH BOSTON
PARKING: AT SULLIVAN'S
WAVES: TBD (EXPECT 10-15 RELAY TEAMS PER HEAT)
AFTERPARTY: TO BE ANNOUNCED
_NOTE:_
_**This is an unsanctioned relay race and therefore there will be no road closures. The runner is responsible at all times for their safety, as well as the safety of the other pedestrians and cyclists. In signing up for this race, the runner agrees to be smart and cautious, yielding for others as necessary, in order to create a safe and fun environment for everyone**_
As the sun sets over Boston, runners will speed around one of the most storied loops in the city: the perimeter of the Castle Island harbor loop. Four runners, one mile each, to determine who will be the Captain of the Castle.
This is a night to bring the running communities of Boston together. Grab your crew of four and register as a relay team, or sign up solo and we'll place you on a mixed-club team.
There will be many ways to win, see if your team can snag a top prize:
* CAPTAIN OF THE CASTLE- Fastest Overall Team
* Fastest Women/Non-Binary Team
* Most Team Spirit
* Fastest Mixed-Club Team (4 runners from 4 different run crews)
* Closest to Predicted Time
Afterwards, we'll celebrate the evening at TBD, sharing drinks and stories to cap off an incredible running experience.
_FULL DETAILS:_
DATE: THURSDAY, AUGUST 20TH
RACE KICKOFF: 7PM
CHECK-IN BEGINS: 6PM
ROUTE: OUT AND BACK - WITH A LOOP AROUND HEAD ISLAND
MEETING LOCATION: CASTLE ISLAND BEACH, SOUTH BOSTON
PARKING: AT SULLIVAN'S
WAVES: TBD (EXPECT 10-15 RELAY TEAMS PER HEAT)
AFTERPARTY: TO BE ANNOUNCED
_NOTE:_
_**This is an unsanctioned relay race and therefore there will be no road closures. The runner is responsible at all times for their safety, as well as the safety of the other pedestrians and cyclists. In signing up for this race, the runner agrees to be smart and cautious, yielding for others as necessary, in order to create a safe and fun environment for everyone**_
Races
-
4 X Mile Relay
Thu 20th August 2026 (7:00PM EDT)
Free
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Location
2080 William J Day Blvd, Boston, 02127, MA, United States
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Captain of the Castle
