Ronald Lee Marchini (aka Ron Marchini) is an American martial artist who  is a champion at renbukai. He wrote books on karate and renbukai with  Leo Fong, a martial artist known for renbukai and Power training in  Kung-Fu and karate. In May 1964, at Takayuki Kubota's All-Stars  Tournament in Los Angeles, California, Marchini fought Chuck Norris, who  earned his first martial arts tournament championship by defeating  Marchini by a half a point.