Ronda Rousey began the Women's Bantamweight bout aggressively. Holly Holm, with her boxing ability, and from her southpaw stance, tagged Rousey repeatedly with her left hand while controlling the distance. Rousey attempted several clinches through the round, including an attempted armbar, but none had a decisive outcome. By the end of the first round, Rousey was bloodied and breathing heavily, with commentators describing the round as the first she had ever lost in her MMA career. Round two followed a similar pattern to the first, with Rousey trying to close the distance but being unable to, frustrated by Holm's stick and move strategy. Rousey stumbled forward after taking a straight left to her chin, and while rising, Holm connected with a kick to the side of Rousey's neck, knocking her out. Holm pounced on the fallen Rousey, causing the referee to end the bout. MMA website Sherdog called the fight their Upset of the Year for 2015.
Jędrzejczyk vs. Létourneau fight
In round one, both fighters exchanged punches at each other. Jędrzejczyk then attempted a combination via a kick, however Létourneau was able to grab Jędrzejczyk's leg and take her down. Jędrzejczyk also landed a front kick to the face that made Létourneau walk unsteadily for a few seconds. The two fighters continued exchanging shots at one another for the rest of the round. Just like the first round, both fighters began the second by exchanging numerous punches. Jędrzejczyk attempted a kick on Létourneau, but Létourneau was able to block the kick, allowing her to punch Jędrzejczyk numerous times. Létourneau later had Jędrzejczyk pinned against the cage, however Jędrzejczyk was able to throw numerous elbow strikes at Létourneau. They continued to exchange shots throughout the round, with Jędrzejczyk throwing more combinations towards the end of the round. In round three, Létourneau began by throwing a combination. Jędrzejczyk then proceeded to throw some leg kicks, as well as front kicks. Létourneau was showing a bit of tiredness at this point, which Jędrzejczyk took advantage of. Jędrzejczyk chopped Létourneau's lead leg. Along with this, both Létourneau's right eye and leg were swelling. The round finished with Jędrzejczyk doing both a combination and a leg kick. Jędrzejczyk started round four with a left jab on Létourneau. Létourneau fought back, hitting a couple of punches and kicks to the body. Despite this, Jędrzejczyk continued to hit left jabs on Létourneau. Jędrzejczyk hit numerous punches throughout the rest of the round, including numerous combinations towards the end of the round. In the final round, both fighters went straight at each other. Jędrzejczyk did numerous leg kicks on Létourneau. Létourneau was able to hit more shots on Jędrzejczyk, however, Jędrzejczyk was throwing various different shots. The judges scored the fight 49–46, 49–46, and 50–45, unanimously in favor of Jędrzejczyk.
Other fights
In a rematch of heavyweights, Mark Hunt finished Antônio Silva via TKO in round one with a right straight that knocked him to his knees and a follow-up left hook. Kyle Noke defeated Peter Sobotta via TKO in round one of their welterweight bout with a front kick and a flurry of follow up punches.
Results
Bonus awards
The following fighters were awarded $50,000 bonuses:
Fight of the Night: Holly Holm vs. Ronda Rousey
Performance of the Night: Holly Holm and Kyle Noke
Reactions
UFC president Dana White commented on the Rousey vs. Holm fight, stating "This is a fight. This is what happens", then going on to state "All the greats eventually go down one day". White also said that "there will absolutely be a rematch." Joe Rogan, color-commentator for the UFC, stated Holm's win is "by far the biggest upset in UFC history."