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Register Now for Marin Tremors Tryouts

Click Here for more information on the 2017 Marin Tremors Program

Click Here to Register for the Tryouts

8U & 10U:  Sunday, May 7th, 9:30am - 12noon.
12U: Sunday May 21st, 9:30am - 12noon.

Del Mar Middle School
105 Avenida Miraflores,  Tiburon.

Age Division Overview

Age is based on child's age on January 1 leading into Spring season.
Players 5 and 6 years old as of January 1st of the calendar year 
T-Ball and some coach pitch
Players 7 and 8 years old as of January 1st of the calendar year
Some girl pitch, some coach pitch
Players 9 and 10 years old as of January 1st of the calendar year
Girl fast pitch, some coach pitch
Players 11 and 12 years old as of January 1st of the calendar year
Girl fast pitch
Players 13 - 15 years old as of January 1st of the calendar year
Girl fast pitch

MGS Rainout text line

Send text to this number: 40404  

Type in : Follow mgsrainout

You will be a member for all MGS fields.  If a field is closed (even if it is not yours) it will be texted to you as a follower.  You need to read carefully to make sure it is your field as you are a member of the whole of MGS!  If you do not get text saying a field is closed-- assume it is open. We are only texting closures. 

Who Are We?

Marin Girls Softball League is a volunteer-driven recreational league for youth fast pitch softball in Central and Southern Marin County. We are a recreational program - any age-eligible child can register and all registered kids play. 

This website is the central location for all League and District news.  At this site, players, parents, family and friends can get updated information about the MGSL and about local Districts. Bookmark this site and come back often and regularly to stay current with all of the news related to players, teams, schedules, standings, clinics and other relevant information. We will update this page regularly to keep all MGSL participants and interested people up to date on our softball league.

Keep a copy of the rules in your team bag! (page #s below)

15u: pp 1-5 & 6-7

12u:  pp 1-5 & 8-10

10u: pp 1-5 & 11-15

8u: pp 1-5 & 16-18

6u: pp 1-5 & 19-21

Read the rules - Know the rules.

Fastpitch Softball Tryout informational flyers

The below area is for other Fastpitch competitive softball options, outside of MGS.  Please refer to each flyer for contact information regarding each league.


    Zorana Elizondo-Walker

    Zorana Elizondo-Walker

    Executive Director of Marin Girls Softball

    Phone: 415-846-5724

    Our Sponsors

    These fine organizations make what we do possible. Please show your support to these amazing sponsors and thank them for their commitment to our organization. Interested in becoming a sponsor? Click here to learn more about our sponsorship opportunities