Nikos Holevas holds the 3rd degree black belt in Aikido (3 Dan Aikikai) and teaches in Sakura Dojo.
He is a certified assistant instructor – Fukushidoin in the Sakumeikan Aikikai.
He began his Aikido training in 2006 at Sakura dojo, under the instruction of Alex Karagiannidis Sensei.
In 2008, along with practicing at Sakura dojo, he started training at the University Dojo, with Konstantinos Matzaras Sensei.
He has visited Hombu Dojo in Japan and attended seminars in Greece and in Europe, with instructors such as Hombu Dojo-cho Mitsuteru Ueshiba, Tsuruzo Miyamoto Shihan (8th Dan Aikikai), Yukimitsu Kobayashi Shihan (7th Dan Aikikai), Takanori Kuribayashi Shihan (7th Dan Aikikai) and Shigeru Sugawara Shihan (7th Dan Aikikai).