Doug Exum began study of Hayashi-ha Shito-ryu Karate with Jerry Ferguson and Julius Thiry of Washington Karate Association.  After several years of study and receiving the rank of Shodan, Exum sensei began teaching the Shito-ryu curriculum and went on to receive Nidan certification before his departure from WKA to assist in founding Pacific Karate Organization with Ferguson sensei.  Under their guidance PKO grew to become one of the most recognized schools in the Pacific Northwest with six locations, hundreds of students, and a highly successful competition team.  Together they fostered numerous national and international champions.

In 1996 Exum and Ferguson began training with Soke Kenzo Mabuni and joined the Shito-ryu International Karate-do family.  This affiliation allowed them to acquire and perfect knowledge of the kata, bunkai and techniques specific to Seito Shito-ryu.  The unique experience of training with Soke Mabuni had a strong influence on both men personally and on their training at PKO.  Soke’s insightful instruction, natural style of movement, and his genuine love of karate will forever be remembered by the many students whose lives he touched. 

Soke Mabuni departed this life in June 2005 followed thereafter by Ferguson’s passing in November 2006.  Despite the loss of his long-time friend and instructor Exum sensei remains a dedicated Shito-ryu practitioner who is recognized as Roku-dan (6th degree) blackbelt.  Shihan and Kyoshi titles awarded by Soke Mabuni further distinguish him as a highly qualified instructor of Shito-ryu.

Exum sensei has participated in sport karate as competitor, coach, official, and tournament organizer.  He is founder and chief instructor of Northwest Karate-do in Arlington, Washington and his students have numerous national and international sport karate awards to their credit.  He has played a key role in directing numerous events including 1999 Seito Shito-ryu Taikai, NW Junior Classic, and Mabuni Cup tournaments.  As an official, he is a recognized National Referee under authority of USA-National Karate Federation and is a Referee with the Pan-American Karate Federation.  He is a founding member and president of Washington State Karate-do Federation, the regional sport organization of USA-NKF.

Dan Certification
1st Dan Hayashi-ha Shito-ryu         Julius Thiry, Shihan-Hayashi-ha Shito-ryu
2nd Dan Hayashi-ha Shito-ryu        Julius Thiry, Shihan- Hayashi-ha Shito-yu
3rd Dan USA-NKF                         USA-NKF Technical Committee-New Orleans, LA
4th Dan Seito Shito-ryu                 Kenzo Mabuni, Soke-Nihon Karate-do Shito-ryu
5th Dan Seito Shito-ryu                 Kenzo Mabuni, Soke-Nihon Karate-do Shito-ryu
Shihan Certification                     Kenzo Mabuni, Soke-Nihon Karate-do Shito-ryu
6th Dan Seito Shito-ryu                 Kenzo Mabuni, Soke-Nihon Karate-do Shito-ryu
Kyoshi Certification                     Kenzo Mabuni, Soke-Nihon Karate-do Shito-ryu

Referee Certification
USA-NKF Kumite Referee             USA-NKF Nationals-Houston, Texas
PKF Kumite Referee B                 Pan Am Sr. Championship, Santo Domingo, DR
USA-NKF Kata Judge “A”              USA-NKF USA Open and JO’s – Las Vegas, NV