He has also studied kempo karate, boxing and muay Thai kickboxing and has coached Kyokushinkai karate fighters in bunkai for their black belt examinations.
Mr Ogden, who also holds a third dan in Olivecrona ju jitsu and a judo brown belt, said he had enjoyed forging strong friendships with each of the instructors who graded on Saturday and was very pleased to be involved with their ju jitsu careers.
"It was a very proud moment to see each of these guys rise to those levels - particularly Mr Huston, who is the first New Zealander to reach that grade."
For more information about the Masterton Judo & Ju Jitsu Academy go online to www.jitsunz.weebly.com or call Simon Ogden on 021 248 6111.