Quinton "Rampage" Jackson (born June 20, 1978 in Memphis, Tennessee) is an American professional mixed martial arts fighter who rose to prominence with his fights in Japan's PRIDE Fighting Championships. He is the former Ultimate Fighting Championship (UFC) light heavyweight champion losing to Forrest Griffin at UFC 86 by unanimous decision. He has a professional record of 29 wins with 7 losses. Jackson is ranked by Sherdog as the number two light heavyweight in the world. Outside the ring, he is known for his humor and colorful personality.
Jackson then defeated PRIDE Middleweight Champion Dan Henderson at UFC 75, on September 8, 2007 in London, England via unanimous decision to unify the two organizations' titles.
Following a stint on The Ultimate Fighter and a title fight with Forrest Griffin, Jackson's next fight, at UFC 92, would be against Wanderlei Silva, the only man to beat Jackson twice. Jackson avenged his previous defeats by knocking Silva out with a left hook at 3:21 in the first round. For the decisive victory Rampage received the Honor of Knockout of the Night.