It's Bokator, a Khmer (Cambodian) art, and it's generally regarded as the most likely root of many (most?) of South East Asia's martial arts (Muay Thai, Muay Boran, Lethwei, Muay Lao, Pradal Serey, etc).
Originally Posted by Middlefinger
All those dirty moves the ref showed at the beginning were they banned or bonus points for doing?
thats very intresting. im looking forward to watch more of this. thanks for the share