Avni Yıldırım has five losses against five opponents on his boxing record. For a list of Yıldırım's best fights, refer to "Best fights of Avni Yıldırım".
On May 14, 2022 Avni Yıldırım faced off against Yusuf Kanguel in a super-middleweight bout at age 30. He was coming in with a record of 24-5 (13), and Kanguel was 38 years old and with a record of 20-5-1 (13). Yıldırım lost the fight via 9th-round TKO.
On July 31, 2021 Avni Yıldırım faced off against Jack Cullen in a super-middleweight bout at age 29. He was coming in with a record of 21-4 (12), and Cullen was 27 years old and with a record of 19-2-1 (9). Yıldırım lost the fight via 10-round unanimous decision.
On February 27, 2021 Avni Yıldırım fought Canelo Álvarez in a super-middleweight world-title fight for Álvarez' WBA (Super), WBC and The Ring titles. Yıldırım was 29 years old and with a record of 21-3 (12), and Álvarez was 30 years old and with a record of 54-1-2 (36). Yıldırım lost the fight via 3rd-round retirement.
On February 23, 2019 Avni Yıldırım fought Anthony Dirrell in a super-middleweight world-title fight for the WBC title. Yıldırım was 27 years old and with a record of 21-2 (12), and Dirrell was 34 years old and with a record of 32-1-1 (24). Yıldırım lost the fight via 10-round technical decision.
On October 7, 2017 Avni Yıldırım faced off against Chris Eubank Jr. in a super-middleweight bout at age 26. He was coming in with a record of 16-1 (10), and Eubank Jr. was 28 years old and with a record of 25-1 (19). Yıldırım lost the fight via 3rd-round KO.
