Who defeated Ronda Rousey in the UFC 193 main event?

Holly Holm defeated Ronda Rousey in the UFC 193 main event.

The women’s bantamweight championship bout took place on November 14, 2015, at Melbourne’s Docklands Stadium in Australia. Holm, a former world champion boxer, entered as the underdog against the undefeated UFC champion Rousey, who had rapidly become one of the sport’s biggest stars.

Holm used a southpaw stance, precise boxing, and lateral movement to keep Rousey from establishing her preferred clinch-heavy attack. After Rousey struggled through the opening round, Holm landed a head kick in the second round and followed with punches. Referee Herb Dean stopped the contest, giving Holm a second-round knockout victory.

The result was one of the biggest upsets in UFC history. It also ended Rousey’s unbeaten professional MMA record and made Holm the new women’s bantamweight champion. The event drew 56,214 spectators, then a UFC attendance record. Cat Zingano, Miesha Tate, and Amanda Nunes were all notable Rousey-era opponents, but none defeated her at UFC 193.