Here is a list of Peña's best fights. For a list of Peña's losses, refer to "Julianna Peña Losses".
On December 11, 2021 Julianna Peña fought Amanda Nunes in a bantamweight title fight for Nunes' UFC Women's Championship title. Peña was 32 years old and with a record of 11-4 (8), and Nunes was 33 years old and with a record of 21-4 (16). Peña stopped Amanda Nunes via 2nd-round submission and is crowned the new UFC bantamweight champion.
On October 5, 2024 Julianna Peña fought Raquel Pennington in a bantamweight title fight for Pennington's UFC Women's Championship title. Peña was 35 years old and with a record of 12-5 (8), and Pennington was 36 years old and with a record of 16-8 (4). Peña won the fight via 5-round split decision and is crowned the new UFC bantamweight champion.
On July 13, 2019 Julianna Peña faced off against Nicco Montaño in a bantamweight bout at age 29. She was coming in with a record of 9-3 (6), and Montaño was 30 years old and with a record of 4-2 (2). Peña won the fight via 3-round unanimous decision.
On April 4, 2015 Julianna Peña faced off against Milana Dudieva in a bantamweight bout at age 25. She was coming in with a record of 6-2 (6). Peña stopped Milana Dudieva via TKO.
On July 9, 2016 Julianna Peña faced off against Cat Zingano in a bantamweight bout at age 26. She was coming in with a record of 8-2 (6), and Zingano was 34 years old and with a record of 9-1 (8). Peña won the fight via 3-round unanimous decision.
On January 24, 2021 Julianna Peña faced off against Sara McMann in a bantamweight bout at age 31. She was coming in with a record of 10-4 (7), and McMann was 40 years old and with a record of 12-5 (6). Peña stopped Sara McMann via submission.
On October 3, 2015 Julianna Peña faced off against Jessica Eye in a bantamweight bout at age 26. She was coming in with a record of 7-2 (6), and Eye was 29 years old and with a record of 11-3 (3). Peña won the fight via 3-round unanimous decision.
