At the beginning of 1967 he made the acquaintance of Master Michihisa Itaya, the representative
in Argentina of the Shotokan school, whose principal aim was to develop karate as a sport in
that country. Master Itaya often visited the Higa family and learnt about the features of the
ancient art of traditional Okinawan karate through the teaching of Jintatsu Higa. As this was
for him a completely novel experience, Oscar urged his father to ask Master Itaya if he could
take part in karate contests, in both kata and kumite. Master Itaya accepted the proposal on
the condition that Oscar learnt the Shotokan kata, which was a prerequisite at that time, for
being able to take part in the karate competitions. So Oscar began competing and achieved
countless successes in competition, becoming the first Argentinian karate champion, and being
placed first in many important events, such as;
Inter-regional Competition, Argentinian Championship, Rio Plata Championship, South American
Championship, both in kata and kumite.