Here is a list of Chávez Jr.'s best fights. For a list of Chávez Jr.'s losses, refer to "Julio César Chávez Jr. Losses".
On February 4, 2012 Julio César Chávez Jr. met Marco Antonio Rubio in a middleweight (WBC) world-title defense fight. Chávez Jr. was 25 years old and with a record of 45-0-1 (31), and Rubio was 31 years old and with a record of 53-5-1 (46). Chávez Jr. won the fight via 12-round unanimous decision and successfully defended his title.
On June 16, 2012 Julio César Chávez Jr. met Andy Lee in a middleweight (WBC) world-title defense fight. Chávez Jr. was 26 years old and with a record of 46-0-1 (32), and Lee was 28 years old and with a record of 28-1 (20). Chávez Jr. stopped Andy Lee via 7th-round TKO and successfully defended his title.
On September 12, 2009 Julio César Chávez Jr. faced off against Jason LeHoullier in a super-welterweight bout at age 23. He was coming in with a record of 40-0-1 (30). Chávez Jr. stopped Jason LeHoullier via TKO.