Ronda Rousey has two losses against two opponents on her MMA record. For a list of Rousey's best fights, refer to "Best fights of Ronda Rousey".
On December 30, 2016 Ronda Rousey fought Amanda Nunes in a bantamweight title fight for Nunes' UFC Women's Championship title. Rousey was 29 years old and with a record of 12-2 (10), and Nunes was 28 years old and with a record of 13-4 (11). Rousey lost the fight via 1st-round TKO.
On November 15, 2015 Ronda Rousey met Holly Holm in a bantamweight (UFC Women's Championship) title defense fight. Rousey was 28 years old and with a record of 12-1 (10), and Holm was 34 years old and with a record of 9-0 (6). Rousey lost the fight via 2nd-round KO and lost the title.