Career
He is considered to be the father of kickboxing in The Netherlands. Plas began his career in martial arts in karate, learning Kyokushin from Jon Bluming. He founded the Mejiro Gym in 1978 after learning kickboxing from Kenji Kurosaki, a Japanese martial artist who founded the original Mejiro Gym in Mejiro, Tokyo.
In 1976, he founded the NKBB (The Dutch Kickboxing Association) with Thom Harinck.
He also went on to run the Vos Gym and trained many world-class fighters including Peter Aerts, Rodney Glunder, Ivan Hippolyte, Rob Kaman, Andre Mannaart and Fred Royers. In 1986, he was involved in the kidnapping of Gijs van Dam II, the son of hash dealer Gijs van Dam, with a gang run by the drug lord Johan Verhoek, also known as "De Hakkelaar".
He worked as a bodyguard for well-known gangster Klaas Bruinsma. On September 1, 2010, it was reported that Plas had committed suicide in his jail cell at the age of 65.
