Executive Team
Our executive team is made up of our head coaches, who lead classes and handle the majority of businesss operations.
Adeline Shen
Executive Director + Head Coach @Blach 1
Adeline Shen, sophomore at Mountain View High School and head coach of the Blach 1 class, has been playing tennis for 11 years and has been on the varsity team for two years. She loves getting to know her students outside of tennis and brings fun energy on to the court while maintaining a focused environment and giving individual feedback to help improve their strokes. Outside of lessons, Adeline also works on JAMMA's social media presence and content.
Karen Zhang
Executive Director + Head Coach @ Blach 2
Karen is a coach for the Blach 2 class. She has been playing tennis for 6 years and has played both singles and doubles for Homestead High School's varsity team. She strives to maintain a positive and encouraging learning environment and hopes to inspire students to challenge themselves physically and mentally. As Roland Garros said, "Victory belongs to the most tenacious."
Chris Lin
Executive Director + Head Coach @ Cooper 1
Chris has been playing tennis for 5 five years and plays on the Mountain View Varsity Team. He’s been coaching for two years and loves every second of it. He loves getting to know his students and wants to create a welcoming atmosphere for everyone.

Owen Kim
Executive Director
Owen, currently teaching private lessons, brings 15 years of tennis experience to the court, where he currently plays for Mountain View's tennis team. Owen designs drills that challenge students to step out of their comfort zones and explore new movements, mindsets, and techniques. Through his guiding advice and constant encouragement, he helps students grow and reach their full potential. Owen is also the head of JAMMA's revenue committee, overseeing the finances across all Bay Area clinics.

Sophia Zhang
Executive Director + Head Coach @ Cooper 3
Sophia is a coach for the Cooper 3 class. She has been playing tennis for 6 years and is on Mountain View High School’s Varsity Tennis team. Sophia aims to spread her love of tennis with students by building a safe and inclusive environment and fostering sportsmanship. Sophia is also involved in the JAMMA business team.

Hunter Tsai
Executive Director of JAMMA Sacramento
Hunter leads the Sacramento Branch and serves as one of the head coaches for JAMMA Sacramento. With eight years of tennis experience, he is the captain and top singles player for the Folsom High School Varsity Tennis team. As a coach, Hunter is passionate about challenging his students to reach their full potential and seeing them improve. He is committed to creating a tennis environment where competition, learning, and enjoyment go hand in hand.
Advisory Board
Led by previous co-founders and experienced adults, the advisory board oversees JAMMA's overall operations and works towards creating long-term progress
Coaching Staff
Our coaching staff works alongside our executive team to create curriculum and coach clinics.

Sophia Ong
Cooper 2
Sophia is a freshman at MVHS. She played on the girl’s varsity team as Doubles 1. She coaches for Cooper 2 and has been playing tennis for nine years. She loves working with children and helping them improve their game, seeing them grow mentally and physically. Sophia is caring and compassionate while coaching and promotes a fun environment for the clinics.

Hannah Rutherford
Blach 1
Hannah is a head coach for the Blach 1 class, where she helps to teach the basics of tennis and build a strong foundation for future development. She has played tennis for around six years, and played #4 singles for Mountain View High School's varsity team as a freshman this year.

Isabella Froman
LAHS
Isabella is a coach for LAHS 2. She has been playing tennis for almost 10 years, and is on her high school’s varsity tennis team. Over the years, she has gained an appreciation for coaching. She focuses on teaching players basic technique in order to help them build a solid foundation, while simultaneously ensuring they have a great time at practice.

Ava Kwok
Cooper 1
Ava is a coach for the Cooper 1 class. She has been playing tennis for over 8 years and is now playing for Castilleja School's Varsity team as a sophomore. As a former student of Francois, Ava strives to coach others in fun and challenging ways. She loves working with kids of all ages, while prioritizing the growth of each individual.

Ryan Kim
Cooper 1
Ryan is a private lesson coach at JAMMA and has been a varsity men's tennis player at Archbishop Mitty High School since his freshman year in 2022. He has been playing competitive tennis since elementary school, participating in numerous singles and doubles tournaments. Ryan creates a fun atmosphere that encourages students to develop a passion for tennis, fostering positive reinforcement and helping them try new techniques. Outside of tennis, Ryan plays the cello and enjoys exploring new foods with friends.

Ishaan Sharma
Cooper 1
Ishaan is a coach in the Cooper 3 class and he has been on the Mountain View High School Varsity team for 2 years. As a coach, he works to develop students game by challenging their abilities while creating a fun environment for the kids to learn in by engaging them in fun activities. Outside of classes, he takes part in JAMMA marketing operations to increase student recruitment and raise awareness about JAMMA.

Merit Qian
Cooper 1
Merit is a coach for the Blach 2 class. She has been playing tennis for 8 years and is on Mountain View High School's varsity tennis team. She loves working with children and focuses on maintaining a positive environment during class.

Adam Li
Blach 1
Adam is a Coach for the Blach 1 class. He has been playing tennis for almost 4 years now, and loves sharing his passion for the game with students. He has been part of the Mountain View High School Tennis JV Team since Freshman year. As a coach, he strives to inspire students with a love of the game and help them develop a strong foundation in tennis.

Natalie Kim
Cooper 1
Natalie is a coach for the Cooper 3 class. She attends Mountain View High School and has been competing on the girl’s varsity tennis team since her freshman year. Natalie enjoys sharing her love of tennis with students and working with kids. She aims to foster a positive learning environment.

Lyla van Loben Sels
Head Coach @ JAMMA Sacramento
Lyla is a head coach for JAMMA Sacramento. She has been playing tennis since she was 5 and playing competitively since the age of 7, recently winning the 2023 CIF sectionals for her school. Lyla enjoys teaching both kids and adults who are passionate about the sport and wants to help them achieve their goals. She enjoys being a part of their growth in the sport. Outside of tennis, Lyla also has teaching and leadership skills from Girl Scouts and band.

Ambareesh Lankipalli
JAMMA Sacramento
Ambareesh is one of the head coaches for the Sacramento Class. He has been playing tennis for over 7 years now and is the captain and #1 singles player of the Cosumnes Oaks Varsity Tennis Team. He is excited to foster a positive environment for all kids wanting to learn tennis.

Lily Guo
JAMMA Sacramento
Lily is a junior at Folsom High School and has played both fourth and fifth singles on the Girls Varsity Tennis Team over the past couple of years. With two years of coaching experience and four years of playing, she is passionate about teaching students the fundamentals of tennis, providing constructive feedback while ensuring the experience is fun. Lily hopes to inspire growth in sportsmanship, competitiveness, and a love for the game. Off the court, she enjoys watching both tennis and basketball.

Claire Liu
JAMMA Sacramento
Claire is a coach for the Sacramento class. She started playing in elementary and is now a sophomore at Folsom High School, playing varsity #3 singles. Claire loves helping children grow and improve their abilities while encouraging them every step of the way. Besides tennis, she enjoys tutoring in dance and school subjects.