Here is a list of Calzaghe's best fights.
On March 4, 2006 Joe Calzaghe, the WBO champion, met Jeff Lacy, the IBF and The Ring champion, in a super-middleweight world-title unification fight. Calzaghe was 33 years old and with a record of 41-0 (31), and Lacy was 28 years old and with a record of 21-0 (17). Calzaghe won the fight via 12-round unanimous decision and and is crowned the unified WBO, IBF and The Ring champion.
On November 8, 2008 Joe Calzaghe met Roy Jones Jr. in a light-heavyweight (The Ring) world-title defense fight. Calzaghe was 36 years old and with a record of 46-0 (32), and Jones Jr. was 39 years old and with a record of 52-4 (38). Calzaghe won the fight via 12-round unanimous decision and successfully defended his title.
On November 3, 2007 Joe Calzaghe, the WBO and The Ring champion, met Mikkel Kessler, the WBA (Super) and WBC champion, in a super-middleweight world-title unification fight. Calzaghe was 35 years old and with a record of 44-0 (32), and Kessler was 28 years old and with a record of 39-0 (29). Calzaghe won the fight via 12-round unanimous decision and and is crowned the unified WBO, The Ring, WBA (Super) and WBC champion.
On October 11, 1997 Joe Calzaghe fought Chris Eubank in a super-middleweight world-title fight for the WBO title. Calzaghe was 25 years old and with a record of 23-0 (21), and Eubank was 31 years old and with a record of 45-2-2 (23). Calzaghe won the fight via 12-round unanimous decision and is crowned the new super-middleweight world champion.
On October 14, 2006 Joe Calzaghe met Sakio Bika in a super-middleweight (WBO, IBF and The Ring) world-title defense fight. Calzaghe was 34 years old and with a record of 42-0 (31), and Bika was 27 years old and with a record of 20-1-2 (14). Calzaghe won the fight via 12-round unanimous decision and successfully defended his titles.
On April 20, 2002 Joe Calzaghe met Charles Brewer in a super-middleweight (WBO) world-title defense fight. Calzaghe was 30 years old and with a record of 33-0 (27), and Brewer was 32 years old and with a record of 37-8 (26). Calzaghe won the fight via 12-round unanimous decision and successfully defended his title.
On April 19, 2008 Joe Calzaghe fought Bernard Hopkins in a light-heavyweight world-title fight for Hopkins' The Ring title. Calzaghe was 36 years old and with a record of 45-0 (32), and Hopkins was 43 years old and with a record of 48-4-1 (32). Calzaghe won the fight via 12-round split decision and is crowned the new light-heavyweight world champion.
On February 13, 1999 Joe Calzaghe met Robin Reid in a super-middleweight (WBO) world-title defense fight. Calzaghe was 26 years old and with a record of 26-0 (23), and Reid was 27 years old and with a record of 26-1-1 (19). Calzaghe won the fight via 12-round split decision and successfully defended his title.
On December 16, 2000 Joe Calzaghe met Richie Woodhall in a super-middleweight (WBO) world-title defense fight. Calzaghe was 28 years old and with a record of 30-0 (25), and Woodhall was 32 years old and with a record of 26-2 (16). Calzaghe stopped Richie Woodhall via 10th-round TKO and successfully defended his title.
On June 28, 2003 Joe Calzaghe met Byron Mitchell in a super-middleweight (WBO) world-title defense fight. Calzaghe was 31 years old and with a record of 36-0 (29), and Mitchell was 29 years old and with a record of 25-2-1 (18). Calzaghe stopped Byron Mitchell via 2nd-round TKO and successfully defended his title.