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Welcome to the MYBS Registration page. Registration is now open for all Fall 2019 baseball and softball programs. Registration will remain open until the date listed for the specific program. 

How it works: Click the program you would like to register your child in from the list below. When prompted during registration, enter your e-mail address and Password and hit "Submit." If you don't remember your password, hit submit and a new, temporary password will be sent to your e-mail address.

  • If you have had a child in an MYBS program: Once you login, your profile information should be in the system. You can change your password and make any other change/updates to your profile. You also will see all the information on your children who have played in a MYB/S program before. You also can easily add a new child to the system. If you need to update information for your profile (your e-mail changes, for example) simply go to "Edit My Account" and login to your profile.
  • If you do not have a child who has played in an MYBS program: Once you login, you will build your family's profile information and add the children interested in playing softball or baseball.

Most fall programs are based on the grade your child is in enrolled in as of Fall 2019; some programs are based on birth date. See each program's description for further details on eligibility.

Refund Policy: MYBS will refund 100 percent of the registration fee paid up until teams are selected. After teams are selected, we will only refund a registration fee because of injury. No refunds will be granted once the season begins/first game is played.

If you have any questions, and we'll respond within 24 hours.

We use e-mail frequently. Please be sure to check your junk-mail and spam-mail folders for email. The emails are sent from our website service provider - LeagueAthletics.com. You may need to add them as a trusted source. Do not reply to - we will not see the emails!

2019 Sandlot Baseball

The Sandlot Series consists of weekly pick-up baseball games beginning Saturday, September 7, and running through Saturday, October 26. Games will be played on Saturday mornings (9-11 a.m.) at Metacomet.

Coaches will run a 30-minute practice followed by an hour and a half pick-up baseball game each week.  Players will be randomly assigned to one of two teams with the goal of mixing skill levels on each team.  There are no assigned teams – lineups will change each week, game-by-game, depending on which players attend that week. 

Players will decide the positions and batting order for their teams.  They will also be responsible for calling balls and strikes, calling outs and playing by the rules of the game (loosely following AAA/Majors season rules).  Depending on interest, coaches may pitch.  The goal is for kids to develop skills and have fun doing it.


The Sandlot Series is open to any current 6th or 7th grader.  Even if you plan to play on the bigger diamond next Spring, Sandlot gives you an opportunity to hone your skills and get a few more at-bats with friends. 

We’re encouraging kids that haven’t played baseball but are interested in trying it, or who’ve played baseball in the past but haven’t played in the last few seasons, to return to the game in a friendly, fun environment.

Open to: Boys

Residents of: 02052

In Grades: 6 to 7 for 2019-20 School year

Jr. Warrior Baseball Academy


The Jr. Warrior Baseball Academy offers off-season indoor training and in-season Saturday skills/practices for 5th and 6th graders who want more instruction and reps than can be provided during the short spring season but don’t want to make the commitment to club baseball.

The winter and spring sessions (detailed below) are included in the $250 registration fee.  If you have questions, email jrwarriorbaseballacademy@gmail.com or call program director Neil Stolzenbach at 617-797-3356.

Winter Program

  • 10 indoor sessions at Sluggers: 4-5:30 p.m., Wednesdays from January 8 - March 11. Includes use of the infield area and hitting tunnels.
  • All aspects of game will be taught - hitting, fielding, pitching, and catching.
  • Program will be run by MYBS coaches and coordinators, with Medfield HS Varsity players  as a co-instructors.
  • Additional instruction will be provided by Rob Mintz (Sr. Legion coach) and Dave Worthley (Medfield varsity coach) as guests of the program.


Spring Program

  • Outdoor sessions at Metacomet: 12:30 – 2 p.m., Saturdays from May 2 - June 6
  • Continued skills instruction with added emphasis on simulated game drills & hitting live pitching.
  • High school players will be available to assist in instruction
  • Guest instructors as available.
  • These sessions are in addition to regular MYBS spring games/practices
  • Outdoor sessions are weather dependent, and will not be rescheduled if rained out.

Open to: Boys

Residents of: 02052

In Grades: 5 to 6 for 2019-20 School year

NOTE: This program is currently only accepting waitlisted registrations. Register for the current waitlist by clicking the Join Waitlist button below.