MassBox Lax Logo

MassBox Lax Logo


Recognizing that Massachusetts and New England needed a Box lacrosse-centric training facility, MassBoxLax was born with the goal of fostering and developing the game in a premier state of the art facility.  Boston Sports Institute, (BSI) centrally located on Rte 9 in Wellesley, opened in June 2019, and MassBoxLax will offer leagues for youth, high school, and collegiate players. 

The goal is to keep lacrosse community based so MassBoxLax will work closely with Wellesley Youth Lacrosse, MBYLL and Founders League for programming youth lacrosse in our area.  

High School Indoor League - Starts January 2023

Sign up with your high school teammates or join as a free agent.  The season starts January 8th, and games are played on Sundays between the hours of 5 - 9 pm. 

7 Sessions:   January 8, 15, 22, 29; February 5, 12, 26; March 5.  Cost is $360.

Grades 9 - 12 are welcome.

MassBoxLax Indoor Club Programs

Players from 3rd - 10th grades are eligible to play in this indoor club program.  Age groups will follow the US Box structure. Novice - HS Elite age groups.  Practices will be held at Boston Sports Institute and the teams will travel to play in 2 - 3 local box tournaments.  
Tryouts are 12/4/22. Pre- registration fee $50; walk in tryout fee $60.

Start Date - 12/4/2022 tryouts 

Age Groups and Costs:

U10  (3rd/4th Grades) - $649

U12  (5th/6th Grades) - $695

U14 (7th/8th Grades) - $695

U16 (9th/10th Grades) - $749


MassBoxLax plays at the Boston Sports Institute.  This state of the art facility opened in 2019. 

The address is 900 Worcester St, Wellesley Ma. 

Our Coaches

Our coaches are experienced and have background coaching and playing in College, High School and the Pros. All staff members are CORI'd and Credentialed.  

Latest News


We regularly update our instagram account and will upload photos here.  Watch the training and see what we do!


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