UFC 129: St-Pierre vs. Shields took place on April 30, 2011 in Toronto, Canada. The event broke the previous record and set a new one for the largest attendance in North American MMA history with over 55,000 inside Rogers Stadium. The card was headlined by two title fights: World Welterweight Championship: Georges St-Pierre vs. Jake Shields and World Featherweight Championship: Jose Aldo vs. Mark Hominick.

The Ultimate Fighter: Team GSP vs Team Koscheck Finale, also referred to as The Ultimate Fighter 12 Finale was a mixed martial arts event held by the Ultimate Fighting Championship at the Palms Casino Resort in Paradise, Nevada, United States on December 4, 2010. This was the first event in the UFC to integrate the featherweight & bantamweight classes from World Extreme Cagefighting, which folded later that month. It was also the first event to feature a then-contracted WEC lightweight fighter (Pablo Garza) in a UFC contest, though he debuted in the UFC at featherweight.

The Ultimate Fighter is an American reality television series and mixed martial arts (MMA) competition produced by the Ultimate Fighting Championship (UFC) and Pilgrim Media Group currently airing on ESPN+. It previously aired for fourteen seasons on Spike TV. The show features professional MMA fighters living together in Las Vegas, Nevada, and follows them as they train and compete against each other for a prized six-figure contract with the UFC. The series debuted on January 17, 2005.