Instructors

Click on the photo to see more information about the instructor.


Yohon Banks
Speciality: Boxing

Yohon has been an athlete his entire adult life. He has years of experience as a football player and boxer.

Private Lessons: Yes. See me in person!
Michael Bazzel
Speciality: Strength and Conditioning, Boxing Conditioning

Mike began his career as a personal trainer in 1993. As a strength and conditioning specialist, Mike focuses on progressive core strengthening, plyometrics, and agility both on the field and in the gym.

Private Lessons: Yes.
Jenna Castillo
Speciality: Kickboxing
Itabora Ferreira
Speciality: Brazilian Jiu-Jitsu, Capoeira

Mr. Ferreira is a Capoeira Master with 33 years of experience and a 2-Time National Brazilian Jiu-Jitsu World Champion with 12 years of training.

Private Lessons: Yes
Sarah Gertz
Speciality: Kickboxing Conditioning

Sarah trained in boxing and Kickboxing under Brian Schwartz for several years. She has been teaching for three years.

Private Lessons: Yes. 650-839-1039
Ryan Jandu
Speciality: Taekwondo

Ryan Jandu started training at Golden State since 2002 and received his black belt in 2006. He's been competing in Sport Karate tournaments locally and nationally since 2003 in point-fighting and forms divisions. Aside from his class, he helps with the junior tournament team.

Private Lessons: Yes
Chris Jensen
Speciality: Taekwondo

Mr. Jensen is a 6th-degree black belt and the Head Instructor of Golden State Taekwondo. He has studied martial arts since 1972 and has taught since 1976. His students have not only won many national and international championships, but have also gone on to become certified instructors themselves.

Private Lessons: Yes. Ask In Person
Stephanie Keller
Speciality: Kickboxing
Private Lessons: Yes.
Yvonne Kerno
Speciality: Taekwondo

Yvonne trained in Kyokushinkai Karate from 1973-76 and began Taekwondo training in 1984 in France. She received her black belt in 1988, and her 3rd-degree rank at Golden State in 1995. She has been teaching since 1989, and at Golden State since 1996.

Shingo Kohara
Speciality: Taekwondo, Boxing

Mr. Kohara has been training for over 20 years and is a 2nd Degree Black Belt. He began at Mackowski's TKD and has been with Golden State TKD since it opened in 1988. He recently tried his hand in MMA, and is 1-0.

Private Lessons: Yes.
Jessica Langford

Jessica is passionate about fitness and has been teaching for over 4 years at various gyms in the area with UBG being her favorite!

Private Lessons: Yes. 650-863-1302
Eric Lee
Speciality: Taekwondo

Eric Lee started his training at Mackowski's Taekwondo in 1978. He began training the day Mr. Jensen began teaching, and is the first of Chris Jensen's students to have received a black belt. He received his 3rd-degree rank in 1993 at Golden State.

Mike Lipinski
Speciality: Taekwondo

Mr. Lipinski began martial arts training in 1969, and was Marty Mackowski's first black belt. He is currently a 5th-degree black belt. His training experience extends to judo and jujitsu, and he has been teaching for over 30 years.

Dave Martin
Speciality: MMA

Dave has been training in MMA for over 10 years and has been teaching at Undisputed for two years. He is also a Purple Belt in Brazilian Jiu-Jitsu. He teaches in order to share his knowledge of style and technique.

Private Lessons: Yes. Ask In person
Bill Morton
Speciality: Taekwondo, Kickboxing

In 1995, Bill began studying Brazilian Jiu Jitsu and Kickboxing. He began his training at Golden State in 1997, and in 2002 he and his wife and son all received their black belts.

Private Lessons: Yes.
Deb Pedersen
Speciality: Taekwondo

Debbie Pedersen is the Co-founder of Golden State Taekwondo. She began training in 1977 and is now a 5th-degree black belt.

 

She was twice the U.S. National Silver Medalist in Olympic-style Taekwondo competition, and has become widely recognized for coaching and training elite level women athletes.

Private Lessons: Yes.
Brian Schwartz
Speciality: Kickboxing, Taekwondo

Brian Schwartz began his martial arts training in September 1980. He achieved the rank of black belt in 1990. He is currently a 3rd degree black belt and a certified instructor with Golden State Taekwondo. He is a 6-time World Karate Champion and a World Champion Kickboxer.

Private Lessons: Yes.
Julia Stewart
Speciality: Yoga

Julia achieved teaching certifications at It's Yoga in San Francisco and the Scientific Yoga Center in Santa Monica, and is a Yoga Alliance Registered Yoga Instructor.

Private Lessons: Yes
Brennon Stewart
Speciality: Taekwondo

Brennon began his martial arts training at Golden State in 1991 and received his black belt in 2002. Mr. Stewart assumed teaching responsibility for his own class in 2004, after assisting other instructors for several years.

 


David Mafi Ta’ufo’ou
Speciality: Boxing

Ta’ufo’ou is an ex-Olympiad and a retired professional boxer. He represented the islands of Tonga in the 1984 Olympics which was held at UCLA.

 

Private Lessons: Yes. 650-716-9929
Mike Wang
Speciality: Taekwondo

Mr. Wang begin Martial Arts training in 1986. He later joined Golden State Taekwondo in 1992 and received his black belt in 1999.

Private Lessons: Yes. michaeljwang@comcast.net
Charles E. Wright
Speciality: Kempo Karate, Taekwondo, Weight Lifting, Aerobics

Charles has been in the fitness industry for 10 years, though he has spent a lifetime keeping fit and training in the fighting arts. For him, fitness is a way of life.

Private Lessons: Yes. charleswright54@gmail.com