Teens Program

The Teens Program offers strength, speed, and athletic confidence training for young athletes. Coaching focuses on proper movement, conditioning, and injury prevention to support sports performance. The age range is 13 to 18.

Programs

• Teens Program — Young athletes; source also says the gym welcomes athletes of all ages, backgrounds, and ability levels. · Builds strength, speed, and athletic confidence in a supportive environment. Coaching focuses on proper movement, conditioning, and injury prevention to enhance sports performance.

At a glance

• Ages: 13–18 years old

About the provider

TJ Belger is listed as Founder/Owner, and the coaching staff includes Nick LaPlant, Dana Schuman, Tatum Robach, Samantha Pinney, Bryce Monroe, John Main, Pedro “Hawk” Morales, Zulma Terrones, and Troy Sack. The About page states a successful 12-year track record and says TJ opened his own gym in San Rafael in 2002. The site also describes the gym as a community that supports each other and notes that TJ meets individually with everyone who walks through the doors.

New members are assessed and workouts are universally scaled for different levels. The site recommends 3 classes per week as a start. It also says beginners may attend 2-4 times per week and later work up toward 5 days per week. The first step is to schedule a first visit and free intro session.

What families say

“TJ's Gym has been open for decades and sets the standard for fitness in Marin. This is a great, well-run gym with owners and coaches who care a lot.” — Todd Nief

“TJ’s Gym is the BEST gym in Corte Madera, hands down. This place will motivate you to be a better person and hit your goals inside and outside the gym.” — Cameron Walsmith

“Before starting I was always a bit intimidated by TJs and if it was the right fit for me. I joined a small group with a trainer and it is the best decision I made.” — Abby Pledger

Last updated September 11, 2026.