Here is a list of Kossobutskiy's best fights. For a list of Kossobutskiy's losses, refer to "Zhan Kossobutskiy Losses".
On May 21, 2022 Zhan Kossobutskiy faced off against Johann Duhaupas in a heavyweight bout at age 33. He was coming in with a record of 18-0 (17), and Duhaupas was 41 years old and with a record of 39-6 (26). Kossobutskiy stopped Johann Duhaupas via retirement.
On February 20, 2021 Zhan Kossobutskiy faced off against Onoriode Ehwarieme in a heavyweight bout at age 32. He was coming in with a record of 15-0 (14), and Ehwarieme was 33 years old and with a record of 18-1 (17). Kossobutskiy stopped Onoriode Ehwarieme via KO.
On November 11, 2019 Zhan Kossobutskiy faced off against Agron Smakici in a heavyweight bout at age 30. He was coming in with a record of 12-0 (11). Kossobutskiy stopped Agron Smakici via KO.
On August 21, 2021 Zhan Kossobutskiy faced off against Joey Dawejko in a heavyweight bout at age 32. He was coming in with a record of 16-0 (15). Kossobutskiy stopped Joey Dawejko via KO.
