Tremors Gold is a summer "C" level travel ball program which kicks off after the rec season and competes in Bay Area tournaments. Gold is suitable for athletes who participate in other sports during the winter/spring.

Tremors Black is a “B” level travel ball program starting with practices in January, and competing in Bay Area and Norcal summer tournaments. Black is designed for players who are more serious about advancing their competitive softball skills.

Tremors Club Ball is a flexible, local, no-tryout program. It is for players who wish to continue playing softball over the summer who are still developing their skills or unable to commit to travel ball.

Tremors Fall Ball is suitable for players who love softball and want to stay engaged in the sport during the fall season. It is a flexible program designed for playing softball along with other sports.

NorCal Fusion is a new Marin-based “A” ball organization providing a local opportunity for girls who want to take travel ball to the next level with more practices, tournaments, and higher competition.

Link to Marin Tremors home page