Marin Tremors is the competitive travel ball and summer club program for Marin Girls Softball.  Marin Tremors is open to all registered Marin Girls Softball players and fields teams from 8U to 18U. 

Marin Tremors hosts teams with players that range from the elite to the developing player.   We are incredibly proud of this focus, ensuring that every player who wants to continue developing their competitive softball skills has the opportunity to do so.

Our programs start in January (Tremors Black), May (Tremors Gold and Club), and late August/early September (Tremors Fall Ball). 

Click here to learn more about the Marin Tremors vision and find answers to FAQs.

Marin Tremors 10u Black Tryouts

Our 10u Black team tryouts will be Sunday, January 25th from 10am-12pm at the Red Hill Turf Field in San Anselmo. We ask that all players planning to attend register here: https://maringirlssoftball.sportngin.com/register/form/248263792 

Our Tremors Black teams are our more competitive teams that form in January or February and begin practicing and playing tournaments then.

Thanks for a great 2025 tournament everyone!  Our dates are set for 2026, and we will be posting more information later in the Spring.

   View all the tournament bracket winners 
here on the Norcal USA site.

And THANK YOU to our MSS 2025 sponsors:

• The Hub -San Anselmo
• Pixels Arcade & Taproom – San Rafael
• T&B Sports – San Rafael
• Chris Jurach Real Estate

Be part of the Tremors training experience!  Click here to view current clinic offerings.

Click here to learn more about coaching with Tremors. Coaches register here:

Two distinct softball programs tailored to different player commitments and skill levels: the Club Ball program and the Travel Ball program.

Club Ball Program: This program is ideal for players who are developing their skills and may not be ready for travel ball commitments or those whose families are unavailable during the summer. Teams are geographically formed and available for 8U, 10U, and 12U players. Teams practice once a week and play back-to-back games on Saturday mornings.

Travel Ball Program (Black & Gold): Geared towards players deeply passionate about softball, our Black and Gold programs involve more competitive and frequent gameplay. Players must demonstrate their skills at tryouts to be selected to our 8U, 10U, 12U, and 14U players. Teams practice 2 to 3 times per week and participate in 5 to 6 local tournaments in the North Bay area.

Learn more about our programs below or compare them here.

Looking for Tremors gear?  Click here.

Check out our impressive list of Tremors who went on to play softball in college!