 On November 26, 2002 he won the K-1 Oceania MAX 2002 title after defeating John Wayne Parr in the final.In 2003, promoter Tarik Solak arranged Zambidis' debut fight in Japan against 2002 World K-1 Max Champion Albert Kraus, whom he knocked out in the 2nd round.In April 2005, Zambidis knocked out with a right hook the popular Norifumi "Kid" Yamamoto, in front of thousands of the Japanese kickboxer's fans.