Maricela Cornejo has seven losses against six opponents on her boxing record. For a list of Cornejo's best fights, refer to "Best fights of Maricela Cornejo".
On August 10, 2024 Maricela Cornejo fought Cecilia Braekhus in a super-welterweight world-title fight for Braekhus' WBC title. Cornejo was 37 years old and with a record of 19-7 (7), and Braekhus was 42 years old and with a record of 37-2-1 (9). Cornejo lost the fight via 10-round unanimous decision.
On June 3, 2023 Maricela Cornejo fought Claressa Shields in a middleweight world-title fight for Shields' WBA, WBC, IBF, WBO and The Ring titles. Cornejo was 36 years old and with a record of 16-6 (6), and Shields was 28 years old and with a record of 13-0 (2). Cornejo lost the fight via 10-round unanimous decision.
On March 18, 2021 Maricela Cornejo faced off against Alma Ibarra at age 33. She was coming in with a record of 13-5 (5), and Ibarra was 33 years old and with a record of 7-1 (4). Cornejo lost the fight via 8-round unanimous decision.
On September 14, 2019 Maricela Cornejo fought Franchón Crews-Dezurn in a super-middleweight world-title fight for Crews-Dezurn's WBC title. Cornejo was 32 years old and with a record of 13-4 (5), and Crews-Dezurn was 32 years old and with a record of 5-1 (2). Cornejo lost the fight via 10-round unanimous decision.
On September 13, 2018 Maricela Cornejo fought Franchón Crews-Dezurn in a super-middleweight world-title fight for the WBC title. Cornejo was 31 years old and with a record of 12-3 (5). Cornejo lost the fight via 10-round majority decision.
On April 16, 2016 Maricela Cornejo faced off against Kali Reis in a middleweight bout at age 29. She was coming in with a record of 4-2 (2), and Reis was 29 years old and with a record of 8-5-1 (4). Cornejo lost the fight via 10-round split decision.
On September 20, 2013 Maricela Cornejo faced off against Tiffany Ward at age 26. She was coming in with a record of 2-1 (1). Cornejo lost the fight via 4-round unanimous decision.