The 13 season of The Ultimate Fighter was broadcast on ESPN from mercredi 30 mars 2011 to samedi 4 juin 2011. It consists of 11 episodes, the first one is called "Something to Prove" and the last one "Tony Ferguson vs. Ramsey Nijem TUF 13 Finale".
Sixteen aspiring mixed martial artists live together, train together and compete against each other to become the Ultimate Fighter. They receive coaching from UFC champions and contenders in a variety of martial arts including wrestling, boxing, judo, Jiu-Jitsu, karate and kickboxing. The winner receives a six-figure contract from the UFC.