Ron van Clief began his martial arts career competing in both full-contact and non-contact karate tournaments in New York then internationally, going on to win several national tournaments and world championships. Van Clief was a student of Gōjū-ryū masters Peter Urban, Frank Ruiz and Moses Powell, as well as WingTsun founder Leung Ting, Modern Arnis and Brazilian Jiu-Jitsu. In 1971, Van Clief created his own style of martial arts, called "Chinese Goju", attempting to unify Japanese style gōjū-ryū with its roots in Chinese martial arts. He currently holds the rank of 10th degree red belt, in this system. On December 16, 1994, Ron Van Clief returned to the ring to fight in the 4th Ultimate Fighting Championship, as the oldest competitor to date to fight in the UFC at the age of 51. Van Clief's sole fight in the tournament was against Brazilian jiu-jitsu exponent Royce Gracie. Gracie won the match by submission with a rear naked choke near the four-minute mark. Ron went on to serve as the commissioner of the UFC. Ron Van Clief retired from competition in 2002 after winning the All American Karate Championship at 60 years old. Ron competed in over 900 tournaments in over 40 years on the tournament circuit. Ron Van Clief retired as a 5 time world karate/kungfu champion and 15 time all American champion. Ron Van Clief has been competing in BJJ tournaments since 2015 and still competes today. Van Clief is also the author and creator of a number of instructional books and video recordings. He was a member of the Screen Actors Guild for over 3 decades.
Ron Van Clief's first acting job came when he was selected to star in the 1974 Hong Kong filmThe Black Dragon opposite Jason Pai Piao. Some of his film roles during the 1970s were Blaxploitation films which capitalized on the then-novelty of an African-American martial artist, following in the tradition of Jim Kelly's role in Enter the Dragon. He starred alongside Leo Fong in a Filipino action film called Bamboo Trap in 1975. Van Clief's film roles earned him the nickname "The Black Dragon", and the name inspired the titles of his films The Black Dragon's Revenge and Way of the Black Dragon. He appeared in the 1977 Italian crime filmThe Squeeze opposite Lee Van Cleef and Karen Black, and was also the fight choreographer for the 1985 film The Last Dragon. Van Clief has earned over 5 different black belts in his martial arts career. Those include black belts in Gōjū-ryū, Jujutsu, Judo, Kung Fu and Taekwondo. One film that was never released was "The Art of Cliefing", directed by Jason Dash. The producers pulled the funding at the last minute, due to widespread protests in Korea. Ron Van Clief also performed various voice-over roles for the international television series titled Kung Faux.