Adam Kownacki has four losses against three opponents on his boxing record. For a list of Kownacki's best fights, refer to "Best fights of Adam Kownacki".
On June 24, 2023 Adam Kownacki faced off against Joe Cusumano at age 34. He was coming in with a record of 20-4 (15), and Cusumano was 35 years old and with a record of 21-4 (19). Kownacki lost the fight via 8th-round TKO.
On July 30, 2022 Adam Kownacki faced off against Ali Eren Demirezen at age 33. He was coming in with a record of 20-3 (15), and Demirezen was 32 years old and with a record of 16-1 (12). Kownacki lost the fight via 10-round unanimous decision.
On October 9, 2021 Adam Kownacki faced off against Robert Helenius at age 32. He was coming in with a record of 20-2 (15), and Helenius was 37 years old and with a record of 30-3 (19). Kownacki lost the fight via 6th-round TKO.
On March 7, 2020 Adam Kownacki faced off against Robert Helenius in a heavyweight bout at age 30. He was coming in with a record of 20-1 (15), and Helenius was 36 years old and with a record of 29-3 (18). Kownacki lost the fight via 4th-round TKO.
