Chief Instructor:  Garry Parker

Experience: 28 yrs training, 17 yrs teaching (2yrs. Assistant in Okinawa)

5-Dan Okinawa Goshukan-Ryu Karate

5-Dan Shihan Karate-Do

President: International Okinawa Goshukan-Ryu Karate Association 

 Sensei Parker began his martial arts training as a high school student training Kodokan Judo in 1984 with Sensei Al Schmitt at the Central YMCA in Columbus, GA.  After enlisting in  the USAF, Mr. Parker was stationed at Osan A.B. Republic of Korea, where he continued  training Judo at the base gym, followed by an assignment in Kadena Air Base Okinawa-Japan in 1991, and began training in Okinawa Goshukan-Ryu Karate at the Hamagawa Dojo with the founder: HanshiTakamiyagi Hiroshi. Sensei Parker separated from Active Duty in February 1994, acquired a visa from the government of Japan, and remained in Okinawa to continue training with Takamiyagi Hanshi at the Hamagawa Dojo. In March 1995, Sensei Parker was promoted to shodan/blackbelt, and began assisting with the teaching of the children's class at the honbu dojo in Sunabe-Chatan, Okinawa.

 Sensei Parker returned to the USA in September 1996; he was honorably discharged from the USAF Reserve in 1998, and opened the Columbus Dojo in March 1999.  Mr. Parker has the distinction of being the first American promoted to Blackbelt by the founder of Okinawa Goshukan-Ryu Karate, as well as being the first American authorized to teach and open a Branch Dojo outside of Okinawa. Sensei Parker still travels to Okinawa to train with Master Takamiyagi, and was appointed the US Director/Shibu-Cho in 2003.

In addition to the primary system of Okinawa Goshukan-Ryu, Parker also cross-trains in Okinawa Kobujutsu (Weaponry), Ju-Jutsu, and Police Tactics.

  • US Director for Okinawa Goshukan-Ryu Karate: 2003-present
  • President of the International Okinawa Goshukan-Ryu Karate Association (IOGKA) the governing body for all Okinawa Goshukan-Ryu students and teachers in the United States of America.
  • Fluent in Japanese and English, and is actively involved in the local International community. 
  • Teaches local law enforcement officers, US Army CID, Federal officers, and members of the US Army Rangers and Special Forces.
  • Inducted into the 2009  UMAA Martial Arts International Hall of Fame as  Regional Instructor of the Year.


Okinawa Goshukan-Ryu Karate-Do Kyokai (Okinawa Honbu)

  • U.S Representative/ Shibu-Cho (1999-2003)
  • U.S. Director (2003-present)

International Okinawa Goshukan-Ryu Karate Association 

  •  Founder & President (2006-present)

Zen Sekai Bujutsu Kyokai (UMAA)

  • Goshukan-Ryu Style Advisor (2009-present)
  • Renshi Board of Directors (2010-present)
  • Georgia State Director (2010)

Senior Instructor:  Izumi Shimabukuro-Parker

Experience: 13 yrs. training, 8 yrs. teaching

3-Dan - Okinawa Goshukan-Ryu Karate

Tashi Teaching License - IOGKA

Senpai Izumi is a native of Okinawa, and has lived  in the United States since 1996.  Mrs. Parker began training at the Columbus Dojo in 1999, and has the distinction of being the first female promoted to Blackbelt in Okinawa Goshukan-Ryu Karate in 2004.  Senpai Izumi received her Assistant Instructor certification in Dec. 2004, and she received her Instructor certification in Mar. 2006, was promoted to 2-Dan in 2009, and promoted to 3-Dan in 2012.

Senpai Izumi is our full-time Instructor for Junior children's class (7-12 yrs.) She is also the Head Instructor for the Karate Kids classes (4-6 yrs). As the mother of five children ranging in age from 8 - 22 years, Senpai Izumi possesses the unique patience that is necessary to effectively guide and teach the junior students.


Our experienced and professional staff at the Columbus Dojo are here to help you succeed in reaching your martial arts goals. ALL Adult Blackbelt Instructors are internationally sanctioned and certified through the Okinawa Goshukan-Ryu Karate Association HQ in Okinawa-Japan. All Instructors and Assistant Instructors are certified through an extensive leadership training program administered by the International Okinawa Goshukan-Ryu Karate Association. 

These are the teaching titles and requirements used by the IOGKA and the Columbus Dojo


  • Senpai-Senior: Any black belt student will be addressed as Senpai by Kohai (junior students.
  • Dai Senpai-Chief Assistant: Highest ranking black-belt under the chief Instructor in the dojo.
  • Tashi- Instructor: This is the entry-level certified instructor title:  Awarded for 1-dan, 2-dan ranked Instructors
  • Sensei-"teacher" Licensed instructors of all levels and ranks may be addressed as Sensei starting at 3-dan.  
  • Renshi- Licensed Instructor: This is the expert level licensed instructor title:  Awarded for 5-dan, 6-dan Instructors.
  • Shihan- Master Instructor: This is the master level licensed instructor title: Awarded for 5-dan, 6-dan Instructors.
  • Kyoshi- Sr. Master Instructor: This is a teacher's teacher instructor title: Awarded for 7-dan, 8-dan Instructors.

Shibu-Cho: Branch Dojo Head-under the Honbu dojo or National Director.

Kancho: Chairman of an Association or Honbu Dojo/National Director.




All  Instructors  at the COLUMBUS DOJO are professionally trained and certified through the International Okinawa Goshukan-Ryu Karate Association.

You will receive the highest quality instruction from our professional staff of Certified Instructors.

We offer many classes each week to fit your busy schedule; with programs such as:

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