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2026 Coach Registration

If you anticipate coaching for the 2026 season (September 2025 through August 2026), this registration must be completed before all other certifications. Please get in touch with your district for information regarding all certifications required for coaching!

*Please note that the instructions are located at the bottom of the "Coaches Corner" page*

Tremors Summer Softball Club Registration has closed

Registration is closed to allow us to roster team, however some teams still have room. 

 

If you are interested in playing this summer, join the waitlist and we will be in touch within 48 hours to let you know if there is room (based on division and location).

 

Join the Waitlist

Why Tremors Club?

  • One afternoon/evening practice per week (scheduled by the coach after teams are formed)

  • Two officiated games each Saturday—usually local doubleheaders at Memorial Park of Bernard Hoffman

  • No standings, no playoffs—just skill-development and confidence building in a fun, supportive setting

  • Large rosters allow for summer travel

  • Season runs June 2 through late July 26 (no games July 4th weekend)

  • No tryouts required—teams are filled first come, first served

 

2025 Umpire Registration

2025 umpire registration is now closed.  Reach out to Madie Augusto, madieaugusto.mgs@gmail.com, with any additional questions!

About Marin Girls Softball

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.

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. 

Marin Summer Slam - July 18-20, 2025

The Marin Summer Slam is back!  Come join us in beautiful Marin County for a weekend of exciting softball for 8U through 14U teams. Games will be played Friday evening through Sunday evening, July 18th - 20th, 2025 - with a 4 game minimum. We look forward to seeing you this summer!

Click here to book your group rate at the Courtyard Novato Marin/Sonoma for 199.00 USD per night - Friday, July 18-Sunday, July 20th.  Last Day to Book: Wednesday, June 18, 2025.

PLEASE VISIT YOUR DISTRICT SITE BELOW FOR REGISTRATION INFORMATION

MGS Season Age Division Overview

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