UFC 122: Marquardt vs. Okami was a mixed martial arts event held by the Ultimate Fighting Championship on November 13, 2010 at König Pilsener Arena in Oberhausen, Germany. Vitor Belfort was set to face Yushin Okami in the main event, with the winner receiving a middleweight title shot. However, on September 21, 2010, Belfort withdrew from the fight to face Anderson Silva. Nate Marquardt ended up fighting Yushin Okami in the main event, which would still determine the next #1 contender.

UFC 122: Marquardt vs. Okami

World Series of Fighting, also known as WSOF, is an American mixed martial arts (MMA) promotion based in Las Vegas, Nevada. The inaugural WSOF event took place on November 3, 2012 and the main card was broadcast on the NBC Sports Network.