Meet our Masters & Instructors

GRANDMASTER CHARLES W. COKER, 9TH DAN

Grandmaster Coker began his martial arts training in 1967 under Senior Master Bill Beach. In addition to Taekwondo, Grandmaster Coker also holds Dan grade rankings by the World Hapkido Federation, American JuJitsu Federation, and Ving Tsun Kung Fu. He competed while in the United States Marines during his active duty days (1968 until 1975). He continued competing until 1983 when he retired ranked 2nd (in his division) internationally by Black Belt Magazine.

Dr. Coker is the CEO of LifeThrive Performance Systems, Inc., which is an Organizational Development Company specializing in the use of Human Data to improve performance and productivity. He has offices in both the US and Europe. He has been married to Tracy for 39 years and is the father of 9 children, three of which are also Olympic-certified Black Belts.

MASTER MARK SADUSKY, 6TH DAN

Mark Sadusky is 6th Dan Black Belt Master Instructor. He is currently responsible for overseeing two of our Yeshá schools and is an active member of the Master’s meetings that assist and guide our instructors and students. Master Sadusky joined Yeshá Ministires after watching his youngest daughter test for her yellow belt. They both went on to receive their Black Belts in 2001.

He competed in the NE Florida Sport Karate Tournament in 2001, taking 2nd in sparring, however his true love is for breaking. After receiving his 4th Dan Black Belt, he traveled to all of the Yeshá schools teaching breaking and was instrumental in writing the required breaks in the Student manual. Master Sadusky was a six times undefeated Yeshá Breaking Champion and in 2002 at the ISKA US Open World Championship, he placed 5th in the World for Power Breaking.

Master Sadusky is a motorcycle enthusiast, enjoys photography,  bungee jumping, sky diving, and scuba diving. He enjoys his family life and feels blessed in all the opportunities that he has been afforded.

MASTER GREG OLIPENDO, 6TH DAN

Master Olipendo is the Lead Instructor for Mandarin East.

MASTER STEVE RITCHEY, 5TH DAN

Master Steve Ritchey is the founder and lead instructor of Yesha’s Switzerland school. He works as a school bus driver for St. Johns County Schools and was a manager at Intuition LLC, with previous experience at Harte Hanks and AT&T U-Verse. He also worked as a commercial insurance agent for 20 years. Steve served in the US Air Force from 1977 to 1981 and obtained a degree in computer technology from National College of Business in Rapid City, SD. Steve has been involved in Yeshá Ministries for approximately 20 years. He teaches taekwondo as a way of sharing the gospel with the community and is passionate about sharing the love of Christ. In his spare time, Master Ritchey enjoys skiing and spending time with his family.

MASTER KYLE SCOTT, 4TH DAN

Although not beginning his martial arts training until his late 30s, what began as an activity for his son quickly became a passion for him and his entire family (son – 2nd Dan, wife – 2nd Dan). Once becoming a black belt, he not only continued his training with Yesha Taekwondo, but also became involved in Modern Arnis, Eskrima/Kali, and Shotokan, as well as other combative training programs and open-mat sparring. He has become a certified trainer for Kodiak Life Protection Systems, a private organization focusing on situational awareness and self-defense training. Once he reached his 2nd Dan, Kyle, prompted by Grand Master Coker, opened our Yesha Oakleaf school where he continues to instruct. In 2020 Master Scott, along with Master Benford, completely reorganized and rewrote the Yesha student curriculum and testing rubric resulting in the newest student manual. Today, Master Scott not only instructs, but is the head of the Curriculum Committee, the self-defense program, a traveling Master Instructor, a contributing instructor for the Black Belt University , and an experienced coach for the Competition Team.

When not instructing with Yesha, Kyle is the field superintendent and vice president for his family’s company that specializes is high end windows and doors in multimillion dollar residential and commercial projects throughout Northeast Florida. 

MASTER BUCK KAPLAN, 4TH DAN

Master Buck Kaplan is the Senior Instructor at the Atlantic Beach school where we have trained year round on the beach since 2020. Many great lessons have been taught out in God’s creation as students fly off the sand and kick through the waves. At the basic level, we build strong self disciplined bodies. At the advanced level, we build up inspiring leaders and excellent teachers. This is what Yesha tries to do every class.
Master Kaplan joined Yesha in 2013 after retiring from the Air Force and traditional martial arts training in Shotokan Karate in Riverside CA, followed by ITF style Taekwondo in Macon GA. He teaches at FSCJ, cooks for his family, plays guitar, and is an electronics enthusiast. 

MASTER HARROLD, 4TH DAN

 Master Harrold is a 4th Dan Black Belt Master who oversees the Yesha Northside school, as well as coordinates the ministry-wide black belt promotions.

As a retired school teacher and former fitness instructor, when her children had begun Taekwondo classes with Yesha in 2011 to learn self-defense as part of their growth and development in a Godly atmosphere, Master Harrold also decided to begin the martial arts journey and training alongside them.

Having raised four daughters, Master Harrold and her husband enjoy traveling and adventure activities.  She is pleased to continue working in a volunteer capacity to further Yesha’s mission of spreading the Gospel message of Jesus Christ through Christian martial arts in Yesha Ministries.

 

 

JADE STILLWELL, 2ND DAN

Jade is a Senior Instructor for the World Golf Village School.

G. ERIC & VIVIAN DAVIS, 2ND DAN

G. Eric and Vivian Davis are the Lead Instructors for the Yesha Fruit Cove school in Jacksonville.

 

JIM BELICH, 2ND DAN

Jim is a Senior Instructor for the Yeshá Fort Caroline School in Jacksonville.

JASPER BELICH, 2ND DAN

 

 

 

 

Jasper is a lead instructor for the Yeshá Fort Caroline School in Jacksonville.

 

ANDREA HARROLD, 3RD DAN

Andrea is a Senior Instructor for the Yeshá Northisde School in Jacksonville.