After getting back on track, Forrest Griffin won his next eight professional fights, beating opponents like Chael Sonnen and Jeff Monson before falling to Jeremy Horn in 2003.
Griffin entered the inaugural season of The Ultimate Fighter under the guidance of Randy Couture and Chuck Liddell on the Dana White television production with an amazing 9-2 professional record.
Griffin won the championship by defeating Stephan Bonnar and went on to face Tito Ortiz, Quinton Jackson, and Elvis Sinosic, among other notable opponents.
He defeated Jackson to win the UFC Light Heavyweight Championship, but he lost it the following fight, at UFC 92, to an unbeaten Rashad Evans.
After that, Griffin competed in five more fights, going up against fighters like Anderson Silva, Richard Franklin, and Mauricio Rua, before calling it a day in 2012 with a victory over Tito Ortiz at UFC 148.