History and Officers.

The Intermountain Yudanshakai was founded in 1965 and has been dedicated to the teaching of judo for the development of people.   

Established in 1965

The Intermountain Yudanshakai is a Judo Black Belt organization focused on the advancement of Judo within the Eastern Oregon and Idaho. We are a proud USJF member and we remain dedicated to our students as we study Judo.   ​

Our Goal

Our goal as a Yudansha (Black Belt Organization) is to teach the fundamental principles of Kodokan Judo as created by Jigoro Kano. We strive to create and continue to develop dojos within the Yudanshakai to promote healthy, lifelong students. 

Board of Directors

Joshua Kindelberger
IYDK President

Joshua is a Godan (5th degree black belt) and was elected to the office of Vice President of IYDK in July 2018 and became IYDK President in June 2020. He is currently a Head Instructor with Mushin in Boise, Idaho.

Rome Acopan
IYDK Vice President

Rome started Judo at a young age in Hawaii ultimately earning his Black Belt (Shodan). Rome has been a national competitor and medalist and he is currently a Certified National Judo referee. He is currently with IMAI in Meridian, Idaho. He was elected to Vice President of IYDK in June 2020

Jerry Mizuta
​​IYDK Treasurer

Jerry was elected to the office of IYDK Treasurer in 1995 and has served the Yudanshakai well. He is a black belt member of Ore-Ida.

We're Here for You 

As the elected officers of the Intermountain Yudanshakai, we are dedicated to the success of your clubs and students. Please reach out with any questions you may have and we will get them answered as quickly as possible. Contact us.

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 In Remembrance

Masao Yamashita Shihan
- Boise Valley Judo Club

George Koyama Sensei
​- Boise Valley Judo Club