Vassiliy Jirov has three losses against three opponents on his boxing record. For a list of Jirov's best fights, refer to "Best fights of Vassiliy Jirov".
On December 9, 2004 Vassiliy Jirov faced off against Michael Moorer in a heavyweight bout at age 30. He was coming in with a record of 33-3 (29), and Moorer was 37 years old and with a record of 46-4-1 (36). Jirov lost the fight via 9th-round TKO.
On March 13, 2004 Vassiliy Jirov faced off against Joe Mesi in a cruiserweight bout at age 29. He was coming in with a record of 33-2 (29). Jirov lost the fight via 10-round unanimous decision.
On April 26, 2003 Vassiliy Jirov met James Toney in a cruiserweight (IBF) world-title defense fight. Jirov was 29 years old and with a record of 31-1 (27), and Toney was 34 years old and with a record of 65-4-2 (42). Jirov lost the fight via 12-round unanimous decision and lost the title.