Career
Clark is a veteran of the Ultimate Fighting Championship, Maximum Fighting Championship and World Fighting Alliance. Clark holds a professional record of 27-21-1, with notable wins over Mac Danzig, Fabiano Iha, and Shonie Carter. He was the first professional boxer to be successful in the UFC.
Ultimate Fighting Championship
Clark is a UFC veteran, whose history with the promotion dates back to the early beginnings of his career.
He returned just under a year later, and faced Frank Caracci at UFC 18 on January 8, 1999.
After winning another fight in the Extreme Boxing promotion, Clark returned at UFC 20 against Fabiano Iha on May 7, 1999, defeating Iha by TKO (cut). Clark would fight in the UFC two more times, defeating Koji Oishi at UFC 25 via majority decision, and losing to Fabiano Iha at UFC 27 in a rematch via armbar, leaving the promotion with a record of 4 wins and 1 loss.