Michael Percy Passenier (born 9 April 1969) is a Dutch kickboxing trainer who owns Mike's Gym in Oostzaan.
At the age of 15, he attended a kickboxing event for the first time, and became impressed by the visitors and the atmosphere.
While working in a bar, he met kickboxing world champion Gilbert Ballantine.
[2] Passenier trained many world champions, including Melvin Manhoef, Badr Hari, Murthel Groenhart and Sahak Parparyan.
[4] At certain stages of their careers, he coached top contenders such as Gökhan Saki, Artur Kyshenko, Alistair Overeem, Freddy Kemayo, Björn Bregy, Sergey Adamchuk and Sergei Lashchenko.