Shodan in Bath, 1999, under Sensei Enoeda 8th Dan.
Nidan in Bath, 2004, under Sensei Aoki 8th Dan, Sensei Ohta 6th Dan.
Sandan in Guildford, 2008, under Sensei Ueki 9th Dan, Sensei Sato 8th Dan, Sensei Ohta 6th Dan.
Yondan at Crawley K2, 2016, under Sensei Osaka 8th Dan, Sensei Imamura 7th Dan, Sensei Ohta 7th Dan.