Meet Our Staff

Driven & Passionate Experts in their Field

Liberty Gymnastics Training Center has a dedicated team of coaches who are driven and passionate about gymnastics. Leaders in their field, the team has produced athletes that have reached the pinnacle of the sport and whom have developed many state, regional, and national champions and National Team members. Our staff’s primary goal is to provide a motivating environment that will encourage athletes to reach their goals.

Once a year, we send our coaches to attend the USAG professional training and certification program for proper coaching attitudes, progressions, first aid, safety, and spotting techniques. Through our own monthly in-house training program, our coaches continuously learn to become better than ever.

We train them not only on how to coach gymnastics, but educate them in other areas like: child development, psychology, and discipline. Our mission is to nurture your child as a whole person – body, mind, and spirit – so, we train our coaches to do just that.

We regularly evaluate and adjust our curriculum for the success of all our children and their varied learning styles. Through gymnastics and the spirit of "Achieving Together," Liberty Gymnastics staff and coaches, along with our member families, are building champions for life!

Marc Courtney

Preschool Gymnastics Director

Terri Nuno

Special Events Director

Katie Jaime

Women's Team Co-Director

Bonnie Schreiner

Women's Team Co-Director

Julie Kaku

Administrative Director

Alethea van Gogh

Owner & Director of Operations

Chris Nagy

Men's Team Director

Joseph van Gogh

Owner & Director of Finance



Yvonne Adams

Preschool & Developmental Gymnastics Coach

Brandon Kim

Recreational Gymnastics Coach

EJ Nuno

Recreational Gymnastics Coach

Matthew Silveria

Recreational Gymnastics Coach

Dezeree Velez

Birthday Party Fun Leader & Recreational Gymnastics Coach

Dominic Gianatiempo

Recreational Gymnastics Coach

Gabe Marquez

Recreational Gymnastics Coach & Graphic Designer

Jean Owre

Girls Team Coach

Andrea Sosine

Preschool & Recreational Gymnastics Coach

Callie Warford

Preschool & Recreational Gymnastics Coach

Mackenzie Goodmanson

Developmental Team Coach

Gigi Medina

Preschool Gymnastics Coach

Maddison Pannell

Girls Team, Developmental,

& Recreational Coach

Cole Stevenson

Boys Team Coach

Sarah Zeiph

Recreational Gymnastics Coach

Jason Green

Recreational Gymnastics Coach

Jada Monjaras

Preschool & Recreational Gymnastics Coach

Lizzy Ramos-Sipes

Girls Team Coach

Megan Talton

Preschool & Recreational Gymnastics Coach

Peter Jenkinson

Recreational Gymnastics Coach

Tori Moore

Girls Team Coach

Hallie Silveria

Preschool Gymnastics Coach

Mike Trapani

Recreational Gymnastics Coach

Office Staff

Jillian Olsson

Office Staff

Kate Soo

Office Staff

Employment Opportunities:

Interested in joining the Liberty Gymnastics Team?

Contact Us

Building A

2330-A Bates Ave. Concord, CA 94520

Preschool, Girls Recreational & Girls Team

Phone: (925) 687-8009

Business Hours:

Mon-Fri: 9am - 12pm and 2:30pm - 8pm

Sat: 9am - 1pm

Sun: Open for birthday parties

Building B

2330-B2 Bates Ave. Concord, CA 94520

Boys Recreational & Boys Team

Phone: (925) 566-8099

Business Hours:

Mon-Fri: 8:30am - 12pm and 2:30pm - 8:30pm

Sat: 8:30am - 2pm

Sun: Open for birthday parties

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