Our Story:
1959- It was around this time that Judo Senseis' like Jim Wilson and Don Links of the old Don San Judo Club on Court Street were teaching Judo in Hamilton.

1965- John K. Purvis (Frank's Sensei) founded the Hamilton Judo Club. Mr. Purvis is credited as being the “father” of Hamilton Judo; Sensei Purvis had a dream of putting Hamilton on the judo map nationally. He was responsible for importing Mr. Young Nam Chung to Hamilton, an All Korean Champion who became the Head Instructor.

1971- Mr. Purvis invited Mr. Chung’s younger brother, Young Jin Chung, (also an All Korean Champion) to come and join the instructional staff at the Hamilton Judo Club.  Young Jin Chung stayed about 3 years and then opened his own Judo/Karate Schools in Dayton.

1985- Current Sensei, Frank Herzog, took over as head instructor.  

2011- The Hamilton Judo Club changed its name to Budokai Judo & Jiu-Jitsu and became a member of the North America Jiu-Jitsu Federation.  The governing board promoted Sensei Frank Herzog to Shichidan (7th degree) in Ju-Jitsu, and Head Ju-Jitsu Instructor Robert Gerhardt to Sandan (3rd Degree) in Ju-Jitsu. The board approved the Ju-Jitsu program curriculum from white belt to black belt.

2012- Bill Nagase, 7th Degree Black Belt and father of Texas Judo decided to join our legacy. Also, John K. Purvis, Hachidan (8th Degree) from Florida and the original founding father of Hamilton Judo, also joined us. The Budokai Judo & Jiu-Jitsu Promotional Board promoted Sensei Denver Grey to Rokudan (6th Degree). 

2012- Chief Instructor Rob Gerhardt 6th Dan (Master) in TaeKwonDo began overseeing the Taekwondo program.

2014- Budokai purchased our own building at 327 Main Street in Hamilton.

2017- Budokai Judo & Jiu-Jitsu became an affiliate of Focused Fight Team and Jeff Robison. Jeff Robison is an IBJJF certified Brazilian Jiu-Jitsu Black Belt under John Will and David Meyer. Coaches Ryan Roach, Luke Schroeder, and Ben Schroeder lead the Brazilian Jiu-Jitsu program at Budokai Judo & Jiu-Jitsu. 

2017 - Budokai TaeKwonDo opened expanded to a new location located at 4103 Hamilton-Middletown Rd in Fairfield Twp.

​We are not like other schools. Our desire is to provide quality training at a reasonable cost and to help you, not only in sport, but also in life. Throughout the years this school has been at over a dozen different locations. We have practiced in garages, churches, YMCA's, and our current location. People have come and gone over the years. The one thing that has stayed constant since 1965 is the passion that burns deep within the instructors that have spent their lives as a part of this club.