skip navigation

Marin Girls Softball League, with almost 1,000 registered players, is one of the largest youth softball leagues in California. We're a volunteer-driven league for youth fast-pitch softball in Central and Southern Marin County.  We operate as a USA Softball district program - providing an educational-athletic program for any age-eligible child.  Any child can register and all registered kids play. 
Marin Girls Softball provides programs for 5 to 15-year-olds; from beginner to competitive travel ball.  Our goal is to help our players develop both life skills and a love of the game, through a positive coaching experience. 

This website is the central location for all League, Travel Ball, and District news.  Click on the links below to learn more about the teams in your district.



If you are looking for opportunities for your player to sharpen their skills this summer and aren't able to join MGS Tremors Travel Ball or Club programs, check out these links:

Novato High School

Dominican University

Cal Softball Camps

National Academy of Athletics



Send text to this number: 84483

Type in : MGSRainouts

You will be a member for all MGS fields.  If a field is closed for a game (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. 


2022 Coach registration (all districts)

All coaches are required to register with Marin Girls Softball at the below registration link.  

12U TB Thunder!!

12U NV Fire Blasters!!

2021 Playoffs 10U & 12U RESULTS

Congratulations to.....


1st place TB HURRICANES!



1st place TB THUNDER!

2nd place NV FIRE BLASTERS !

Congratulations to all on a season well played!!

10U TB Hurricanes!!

10U SA Black Diamonds!!

Marin Girls Softball Mission Statement

Marin Girls Softball aspires to be an outstanding educational-athletic organization, providing and expanding opportunities for softball players across Marin, from beginner (recreational) through to competitive travel-ball programs.

Marin Girls Softball aim is to offer a high-quality experience for every player.  A high-quality experience is one in which every player: 

  1. Is coached using the principles of positive coaching, developing confidence and self-esteem in every player
  2. Has fun at practices and games
  3. Feels like an essential part of the team
  4. Learns to promote sportsmanship, integrity, and teamwork 
  5. Learns “life lessons” that have value beyond the playing field
  6. Learns the skills, tactics, and strategies of the game, and improves as a player
  7. Has the opportunity to develop their game to their desired level: recreational, competitive travel-ball, and preparation for high school softball.

Marin Girls Softball recognizes that coaches, officials, and parents are the people who most directly make this all possible. It is our goal to provide every coach, official, and parent with a clear understanding of this mission, and the tools necessary to succeed.  

We are committed to creating a positive culture, in which coaches, officials, parents, administrators, and players, work together to achieve our mission. 


MGS Recreation Season Age Division Overview

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

MGS email contact

(individual districts check your own page above)