Ryuhokan Schedule

令和08年 01月 24日 - - -

      Home

      Class Info 案内
      - Gojuryu
      - Schedule
      - Curriculum
      - Kobudo

      Resources 資源
      - Terminology
      - Records
      - Contact

授業の時間割
Class Schedule

In-person classes are taught at Risner Gym on Kadena Air Force Base in Okinawa Japan by Scot Mertz sensei. Online training options are also available. Private lessons can be arranged by contacting Mertz sensei directly (via our facebook page). Our Saturday classes are for the Ryuhoryu system. Below are some helpful links. We look forward to seeing you in the dojo!

Location Directions Description

Shureido Click for Map Karate Uniforms and Sparring Equipment on Okinawa

Ippon Do Click for Map Karate Uniforms and Equipment close to Kadena Gate 2

Schedule for Gojuryu classes at Risner Gym, Kadena

Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
N/A	6:15-7:15 PM	N/A	Online 6-7 PM	6:15-7:15 PM	N/A	Online 8-9 AM

All times shown are in JST

Our 2026 testing schedule is set up on a quarterly basis. General Kyu testing will be on 27 March, 22 June, 25 September, and 18 December 2026. Please feel free to contact us for more info.

8th Dan Certification (JBIF)

Shihan License (Chief Instructor)

Branch Dojo Authorization

About Scot Mertz Sensei
Chief Instructor of the Ryuhokan Dojo

All classes are taught by Scot Mertz Sensei, who began his martial arts training in 1983 and has continued to practice martial arts throughout his life. Over the years, he has had the privilege of training in Okinawa with leading instructors, including Yagi Meitoku Hanshi (Meibukan), Kurashita Eiki Hanshi (Eikikan), and his current teacher, Toyama Zenshu Hanshi (Shinjikan). In addition to Gojuryu, he has trained in Ryueiryu, Shorinryu, Shotokan, Ninjutsu, Okinawan Kobudo, and Kenjutsu. Scot Mertz Sensei holds an 8th-degree black belt in Okinawan Gojuryu Karate and Kobudo.