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Inspiring kids to be active for life

Nurturing the playfulness within each child

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Our Approach

GrowFit was co-founded in 2011 by Russ Nuffer. Inspired by his happy childhood memories, which all seemed to involve sports and friends, Russ sought to provide that same enjoyable experience to today’s children. Rather than the competitive sports environment found in many programs, Russ wants GrowFit to provide a safe atmosphere for all kids to enjoy sports in a team environment.

 

 
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We personalize the learning experience. Each child is allowed to learn and develop at their own pace, leading to skill competence and confidence.

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We focus on fundamental motor skills. These skills are the building blocks for specialized movement patterns that allow kids to take part in a range of activities.

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We keep students moving. Our activities incorporate a great deal of aerobic exercise to deliver immediate health benefits.

 
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We make PE enjoyable. To keep kids engaged and moving, we make sure that each session seems like play, not work.

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We offer decades of experience. To tap our team’s collective wisdom, we encourage knowledge sharing—so that each instructor is much more than just a teacher.

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We provide a supportive environment. Children learn best when they’re in a non-competitive setting focused on each kid’s self-improvement.

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 Our Values

In addition to developing their motor skills, we share with children life skills that will allow them to be great teammates and adults.

 

 
Be respectful.
It is important for kids to be open minded to others’ needs and feelings. They will learn to show respect to others, themselves and the sports equipment.
Work hard.
GrowFit kids learn to become risk takers, to be brave and try new things. It is important for kids to try their best and understand the need for practice when learning a new skill.
Be honest.
Kids will learn to be honest with themselves and with others.


 “Probably the best hour of our week. Time spent with my kids away from any distractions of work/TV/laundry; Kai is so happy, getting his crazy out; SportsHouse is a great facility. It’s huge, it feels safe, friendly & happy. Kai gets to bounce after class (amazing). Kai made a little friend in his class; we love the coaches! Responses to my e-mails and phone calls are super quick and understanding of my rambling requests.”

- Krissie

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 Meet The Team

 

 
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Russ Nuffer

Co-Founder, CEO

Russ is a nationally certified personal trainer with the American College of Sports Medicine and a certified Double Goal Coach by Positive Coaching Alliance. In addition to founding GrowFit, he's the Director of Fitness for The Fit Kids Foundation, a 501(c)(3) non-profit corporation that brings a free after-school fitness program to children in underserved communities. He was also on the advisory committee of Stanford GOALS, a research project aimed to improve health through sports and physical activity. With a lifetime love of sports and the outdoors, he enjoys helping people discover the fun in physical fitness and is passionate about introducing a healthy lifestyle to young children. Russ graduated from Cal Poly, San Luis Obispo with a BS in Kinesiology (concentration in Physical Therapy) and a minor in Psychology.

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Ashley Schildwachter

Director of Business Development

Ashley has six years of experience teaching in urban settings with students ages 6-14. Prior to GrowFit, Ashley worked as a special education teacher and consultant in the Bay Area and in New York City. She earned her bachelor’s degree in Human Development and International Studies from Boston College and her Masters in Education from the New York City Teaching Fellows program at Long Island University, Brooklyn. Ashley was a Division I scholarship swimmer at Boston College. As a lifetime athlete and health advocate, she is inspired to work at GrowFit because she believes in the company’s desire to support the well being of youth through physical fitness. She is passionate about providing kids with a healthy and fun outlet for their energy and a space where they can make friends in a team environment.

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Ramiro Arredondo

Camp Director

Ramiro has 19 years of experience working in camp settings with students ages 4 to 18. Before working with GrowFit, Ramrio was the Sports Director at SportsHouse. He has been a professional coach for 16 years and has earned his National Soccer Coaching Association license and well as his United States Soccer Federation National D License. As an active supporter of the Positive Coaching Alliance, he has coached/taught club, high school and college soccer. Currently, Ramiro is the Soccer Program Director for Sacred Heart Prep Girls and Head Coach for the San Mateo County Earthquakes. After graduating from Priory, Ramiro studied and played 4 years of Division 1 soccer at the University of California at Berkeley where he earned his BA in Art and Architecture. Ramiro was inspired to work for GrowFit and is looking forward to creating the ultimate camp experience. He is passionate about all sports and looks forward to having fun at the best camps in the Bay Area at GrowFit.


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Randell Manzon

Educator

Randell is going into his 8th year of combined coaching and teaching in various school and high level settings. Prior to working with GrowFit, he worked as a substitute teacher in Union City. Randell graduated from California State University-East Bay with a Bachelors of Science Degree in Kinesiology and an option in Physical Education Teaching. On top of teaching, Randell has a passion for coaching volleyball. He has coached for the last 5 years at the high school and club level. He is excited to work with GrowFit and a long career in teaching physical education.

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Bernie Castro

Sports Program Manager and Educator

Bernie has taught physical education for two years with GrowFit. Prior to GrowFit, Bernie coached basketball at Bayside Stem Academy and St.Peter's School in San Francisco. Additionally, he has coached basketball at the middle school and junior high levels and has played basketball and football in high school. He is passionate about coaching and enjoys teaching youth sportsmanship and the concept of teamwork.

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Devin Harris

Educator & Athletic Director

Devin has over 14 years of experience working with children. Prior to joining GrowFit, Devin was as an Outdoor Education teacher and basketball coach for both elementary and middle school students. In his spare time, he enjoys being outdoors, dancing and playing baseball. Devin is currently pursuing a degree in child development and looks forward to a long career in physical education.


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Juan Rascon (JR)

Camp Coach

JR has 2 years of experience working with students ages 7 to 14. Prior to GrowFit, JR worked with the Sophies Scholars Program at Sacred Heart to promote a safe and welcoming environment in which each person is valued, cared for, and respected. JR is in the process of earning his Bachelor’s degree in psychology from Boston College where he is involved in intramural soccer and immersion programs. He was inspired to work with GrowFit because of it’s mission to provide a safe place for kids to discover new athletic passions. He is passionate about building connections with youth and looks forward to helping make the world a better place.

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Winson Yip

Educator

Winson has three years of combined experience teaching and assistant teaching in elementary and middle school program settings with students ages 5 to 13. Prior to GrowFit, Winston was involved in many athletics. Additionally, he was in the volleyball club at the University of Santa Cruz. He earned his degree in environmental sciences from the University of Santa Cruz, where he found his passion for teaching and working with youth. He was inspired to work for GrowFit after realizing teaching was what he loves to do. He is passionate about being active and working with kids and looks forward to inspiring the students to love being active.

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Yvonne Gragnola

Educator

Yvonne has many years of experience working with kids in elementary and middle school settings. Yvonne joined the GrowFit team in 2017 and has been a natural fit. Yvonne adds a tremendous amount of compassion to GrowFit. She currently teaches kids from 4 to 16 years old and looks forward to a long career in education.


Joe Callinan

Co-Founder, Advisor and Director of Finance

Prior to GrowFit, Joe spent 8 years as a Product Leader for a $4 billion dollar technology company. During that time he was the Product Leader for two new products, QuickBooks Self-Employed and QuickBooks Financing. Joe earned a BS and MBA from Cal Poly, San Luis Obispo and is a Certified Public Accountant.

Athena Herrera

Educator

Athena is a recent graduate at San Jose State University where she studied Sports Medicine/Kinesiology. She has worked in the fitness industry as a Certified Personal Trainer but has found her passion is working with children. She has worked as a children’s coach in Mixed Martial Arts for 8 years and is the head coach of a local high schools first ever girls wrestling team. She has a passion to make exercise and fitness inclusive and enjoyable for everyone.

Dolly Nave-Kilpatrick

Educator

Dolly has 5 years of experience teaching physical education in after school and non profit program settings with students ages 4 to 14. Prior to GrowFit, Dolly went to school for early childhood education and dental assisting. Additionally, she has coached/taught at Novato High School for 4 years at varsity level and was a cheerleader from age 4 till college. Having experience working with kids made her interested in working with them for a career. She is passionate about helping kids be active and looks forward to a long career in teaching.

Mason Radeke

Educator

Mason has 2 years of experience teaching physical education in elementary and high school settings with students ages 6 to 16. Prior to GrowFit, Mason played professional baseball for the Cleveland Indians. Additionally, he has coached baseball players at the middle school and high school level. Mason earned his Bachelors degree in Sociology from Cal Poly, San Luis Obispo, where he played Division 1 baseball for the Cal Poly team. He was inspired to work for GrowFit after he realized teaching was his passion. Mason is passionate about friends and family and looks forward to instilling his love of sport in campers and kids.

Join Our Team 

 
Open Positions: Part-Time Teachers

We’re looking for part-time educators in the Peninsula area that are passionate about teaching; believe in the importance of being physically active and want to have an impact on millions of children. If this sounds like you, join us on our mission to personalize physical education and provide every child with the skills and motivation to live a physically active life.

Responsibilities:
  • Teaching PE and enrichment classes - This includes preparation, student assessments and communication with parents, teachers and students. In addition to PE, you may be teaching one or more of the following enrichment classes: basketball, flag football, soccer or PE games.

  • Furthering the curriculum and lesson plans - We believe the secret to a great PE program is a personalized curriculum that allows each student to learn and develop at his or her own pace. As a teacher, you will be responsible for providing feedback and suggestions on ways to enhance the learning experience.

  • Improving the customer experience - There is nothing more important than the experience of our students, teachers and parents. All teachers are responsible for ensuring their schools have the best possible GrowFit experience.

 

Apply Now >>>

 Our Partners

If you are an employee of one of our partners, contact us to find out what perks we have for you.

 

 
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