Welcome to the Massachusetts Biotech Softball League!

State Championship to be played on Wed 9/28, 6PM, at Hoyt field in Cambridge!
  • Organogenesis (Metro South) will take-on Genzyme North (Metro West) for the 2016 MBSL State championship on Wed 9/28, 6PM, at Hoyt field in Cambridge!


  • Follow all of the action in the state playoffs at our State Playoff page.

2016 Mass Biotech Softball State Playoffs to start the week of Sept 6th!
  • Congratulations to Genzyme (repeat Cambridge 1 champion), Alnylam (Cambridge 2 champion), Agios (Cambridge 3 champion), EMD Serono (Metro Central champion), Aerotek (Metro North champion), Organogenesis (repeat Metro South champion), Genzyme North (repeat Metro West champion), and Boston Scientific Blue (repeat Metro Worcester champion) for winning divisional titles!


  • Follow all of the action in the state playoffs at our State Playoff page.

2016 Season Invoice, Insurance Waivers, and Team Roster Worksheet now available!

We want you to Propose New Rules and Comment on Potential Rule Changes for the 2016/2017 Mass Biotech Softball Seasons!
  • The 2015 League Rules are posted here.


  • Do you have any proposed changes? Would you like to comment on changes that other league members are proposing? Use the new MBSoftball Rules Forum!


  • Everybody is allowed to read existing topics and conversations, however you need to register to contribute to an existing topic or start a new one.



Mass Biotech Softball Annual Year End Party to be held on Monday November 9th, 2015
  • The event will take place on Monday, November 9th, 2015 from 6-9PM at Game On!/Blazing Paddles (next to Fenway Park), in the downstairs section.


  • The league has purchased appetizers, and we’ll also be able to use the batting cages (which are actually the batting cages for the visiting team at Fenway Park). In addition, there are ping pong tables and a corn hole field which will also be open for our exclusive enjoyment. Attendees will be responsible for their own drinks (cash bar). All guests must be 21 or over, positive ID required.


  • Download the Printable Flyer advertising this event.


  • Questions about the event can be sent to Alex Long

Boston Scientific Blue (Metro Worcester) uses a late rally to outlast Genzyme (Cambridge 1) to repeat as MBSL State Champion!
  • Boston Scientific Blue (the 2015 Metro Worcester champion) won the 2015 MBSL state title by beating Genzyme (the 2015 Cambridge 1 champion) in a nail-biter. Congratulations to both teams on a great game played!


  • The "Sellers Cup," which is held by the MBSL champion for 1-year periods (much like the Stanley Cup), was presented to Boston Scientific Blue on the field at the conclusion of the game.


  • See the full state playoff bracket and all of our past league champions at our League Playoff page.
Boston Scientific Blue, 2015 Champions
Boston Scientific Blue, 2015 League Champions

2015 Mass Biotech Softball State Playoffs to start the week of Sept 7th!
  • Congratulations to Genzyme (Cambridge 1 champion), Takeda (Cambridge 2 champion), Abcam (Cambridge 3 champion), ThermoFisher (Metro Central champion), Instrumentation Laboratory (repeat Metro North champion), Organogenesis South (repeat Metro South champion), Genzyme North (Metro West champion), and Boston Scientific Blue (repeat Metro Worcester champion) for winning divisional titles!


  • Follow all of the action in the state playoffs at our State Playoff page.

The Mass Biotech Softball League is excited to invite you to our 2nd Home Run Derby at Fenway Park fundraiser for the Red Sox Foundation!
  • This is your opportunity to try to hit one over the Green Monster and win fabulous Red Sox related prizes! Each participant gets 10 pitches, and the opportunity to shag fly balls in the outfield while others hit. This event is open to players, family members, friends, and coworkers of the Mass Biotech Softball League (minimum age: 10 years).


  • The event will be held on Saturday August 29th at Fenway Park in Boston. One hour Time slots include 9:00 a.m., 2 p.m., 3 p.m. or 5 p.m.


  • To participate, a $80 minimum tax-deductible donation needs to be made to the Red Sox Foundation.


  • This event is limited to the first 200 registrants. To register visit, redsoxfoundation.org/donate (use the drop down menu "Program/Event" and indicate Mass Biotech Derby).

MBSL in Boston Globe!
  • Read the full story, which contains pictures and quotes from many people associated with the league.