[4][5] In March of 1979 Prouder won the World Kickboxing Association Super Welterweight title against Toshihiro Nishiki.
[1] In March of 1980, Prouder retained his Super Welterweight title against Marc Costello in Las Vegas, Nevada.
[6] In April of 1982, Prouder lost a Super-Welterweight title fight to Bob Thurman via unanimous decision.
[7] In July of 1982, Prouder defeated Jeff Gripper by TKO to win the Professional Karate Association Welterweight title.
In February of 1985, Prouder lost the Professional Karate Association Welterweight title to Johnny Davis via decision.