Program Director / Assistant Instructor – Black Belt Program

Jane originally joined the CHKA family as a parent in 2008 when she enrolled her son, Simon. A year later, she began studying with Sifu Jack herself and soon felt that she had found a home. In 2010, Jane became a member of the Black Belt Program, a Team CHKA competitor, and then an Assistant Instructor. Prior to finding a home in martial arts, Jane had spent her life performing as an actress and musician. Jane is a Program Director at CHKA, overseeing the children’s programs and partnerships with outside entities. Jane created The Women’s Martial Arts Workout, bringing a martial arts focus to fitness training for women.



Assistant Instructor – Black Belt Program

“The road of Hercules isn’t the easy one. It’s the bumpy one. And it’s the road of the great ones.” It’s Eton’s favorite Sifu Jack quote. He came to Sifu in 2003, interested in the health aspects of working out and curious to learn about self defense. He soon discovered the classes were a lot of fun and meant more than just a workout. The results went far beyond improving his physical shape as he gained intangible values like confidence, work ethic, and discipline. Inspired by Sifu Jack’s waterfall of knowledge and experience, he committed to CHKA and joined the black belt program in 2008. Together with Micky, Eton is the assistant instructor for most adult classes as well as the free women self defense program.


Assistant Instructor – Black Belt Program

After much searching, Micky found CHKA in 2005 and right away joined the Black Belt program. Kenpo taught him greater calm and focus. Micky is a Program Director and he is also the instructor for CHKA’s children’s program at the Lycée Francaise. Together with Eton, Micky is the assistant instructor for most adult classes as well as the free women’s self defense program.


Assistant Instructor – Black Belt Program


Assistant Instructor


Assistant Instructor – Black Belt Program

Ronnie began her love affair with CHKA casually attending the free women’s self defense classes. Never a physical person, she was surprised that she started looking forward to the classes every week. Inspired by the intense positivity and lack of pretension, she wanted to come more and more often, until she found that she was a part of the Black Belt Program and an assistant instructor. Now, twenty pounds lighter and seven trophies heavier, she is grateful to Sifu Jack and the universe for CHKA.


Assistant Instructor - Black Belt Program

Sheikh began studying at CHKA in February 2012. She is a junior at Millenium High School in Manhattan and she hopes to go on to have a career in the health professions. She loves training at CHKA and feels that it is like a second home to her. At CHKA, Sheikh has learned to turn the word “can’t” into CAN!

Jonathan Martinez

Assistant Instructor - Black Belt Program

Jonathan was born and raised in the Lower East Side. In 2012 he was looking for a martial arts studio that could help him train and grow as a person. His search ended at CHKA's door steps. Here, he says, he didn't just find a good group of people always willing to help each other, but rather a family of gentle warriors. It was very clear that he had found what he was looking for. Soon after, he took advantage of the opportunity to join the Black Belt Program. Thanks to CHKA, Jonathan says, he is proud of the person he is becoming and the skills he has been able to develop