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Tremors Summer 2025 Travel Ball Tryouts!

Marin Tremors will be holding tryouts for the Summer Travel Ball Season on Sunday, April 27th.  UPDATE: 14U and 16/18U will now be Sunday May 4, at Del Mar 10 am-12pm  

This summer we'll be fielding 8U, 10U, 12U, 14U and potentially a 16/18U team in B/C-level tournaments around the North Bay area. Each team will compete in approximately five tournaments. Some teams will compete in Western Nationals come the end of July!

To register for the Marin Tremors Travel Ball tryouts, please visit https://maringirlssoftball.sportngin.com/register/form/878292448

(Registration will close at 7:15 PM April 26th for tryouts on the 27th)

Alternatively, if your athlete is interested in continuing to play over the summer in a relaxed local setting, we will be opening registration in early May for our Summer Tremors Club Season. Open to 8U, 10U, and 12U players, this program typically offers one evening practice per week and Saturday doubleheaders in Marin. 

It’s a great way for players to keep developing their skills, stay active, and have fun. The summer schedule also works well for families planning to travel, as the Club program is designed to be flexible.

Marin Summer Slam 2025

Marin Summer Slam 2025Come join us in beautiful Marin County from July 18th - 20th for a weekend of exciting softball for 8U through 14U teams.  REGISTER HERE!

Who are the Marin Tremors?

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 14U. 

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 September (Tremors Fall Ball). 

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


What is the difference between Travel Ball and Club Ball?

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.

Marin Tremors Club

Click here to learn more about the Marin Tremors Club program.

Marin Tremors Club

Tremors Club program is for players who are developing their game, or are not quite ready for the commitment of summer Travel Ball.  Our Club program is one of the most popular programs we conduct each year. 


Marin Tremors Black

Click here to learn more about our Tremors Black program.

Marin Tremors Black

Tremors Black is the most competitive team program for the Tremors.  Teams compete in B and C tournaments around the Bay Area and state. Tremors Black demands a higher commitment with more frequent practices and multi-game tournaments, designed for players who are more serious about advancing their competitive softball skills.


Marin Tremors Gold

Click here to learn more about our Tremors Gold program.

Marin Tremors Gold

Tremors Gold is our Summer Travel Ball program.  Kicking off right after the completion on the MGS recreation season, the Tremors Gold program is the core of Marin Tremors. 



Marin Tremors Fall

Click here to learn more about the Marin Tremors Fall Ball program.

Marin Tremors Fall Ball

Tremors Fall Ball program is for players that really love their softball and want to continue to develop their skills in the Fall. We offer a flexible program designed for softball along with other sports.


Contact Us

For more information on Marin Tremors please contact:

Greg Flandermeyer

MGS President, Tremors Committee

Phone: 415-342-4332

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Link to Marin Tremors home page