Shihan John Kalaidopoulos is an official Branch Representative of the World Karate Organization Shinkyokushinkai based in Tokyo, Japan.  The WKO is the largest organization of its kind, consisting of over 100,000 members in 94 countries throughout the world as of October 2016 and continues to grow.

As of 2016, Shihan John has been training for over 28 years and holds the rank of 5th Dan as certified by the WKO.  He has spent the last 20 of those 28 years passing on his vast knowledge to his students.  In addition, Shihan John constantly seeks to further his own skills and teaching methods by training with world-renowned karate practioners and instructors both nationally and abroad.  Most recently, he attended the 1st European Full Contact Karate Camp in Belgium as well as the WKO training camp at Mount Fuji in Japan following the 2015 World Championship (login into Facebook to see the photos).

In 2000, Shihan John was a member of the Canadian team and fought in Japan at the IKO (International Karate Organization) Matsushima World Championship.  Shihan John now trains and coaches students for the ShinKyokushinkai Canadian International Team.  One of those students, Sempai Kimm Carriere, has since competed in several international tournaments, including the Diamond Cup in Belgium, the British Open Knockdown Karate Championship in England and most notably, the 11th World Karate Championship Shinkyokushinkai in Japan in November of 2015 and the 6th World Karate Championship in Weight Categories in Astana, Kazakhstan, in July of 2017 (login to Facebook after clicking on the link to see these photos).  In prior years, as part of the IKO Matsushima organization, Shihan John trained and coached two other students who competed in Japan at the IKO Matsushima World Championship in 2004 and 2008.