On June 16, 2012, the 26-year-old WBC middleweight world champion, Julio César Chávez Jr. (45-0-1, 31 KOs), faced a 28-year-old Irish boxer Andy Lee (28-1, 20 KOs), in a title defense fight.
Chávez Jr. came in to the fight on a 22-fight win streak with a 67% KO rate, and was fighting after a gap of 4 months and 12 days. Lee was on a 13-fight win streak with a 69% KO rate, and fighting after a layoff of 3 months and 6 days.
Julio César Chávez Jr. stopped Andy Lee via TKO in the 7th round of the 12-round world-title fight, and successfully defended his WBC middleweight title. Chávez Jr. improves his record to 46-0-1 (32 KOs), while Lee adds a loss to his record at 28-2.
On November 19, 2011, the 25-year-old WBC middleweight world champion, Julio César Chávez Jr. (43-0-1, 30 KOs), faced Peter Manfredo Jr., in a title defense fight.
Chávez Jr. came in to the fight on a 20-fight win streak with a 68% KO rate, and was fighting after a gap of 5 months and 15 days.
Julio César Chávez Jr. stopped Peter Manfredo Jr. via TKO in the 5th round of the 12-round world-title fight, and successfully defended his WBC middleweight title. Chávez Jr. improves his record to 44-0-1 (31 KOs)
On February 4, 2012, the 25-year-old WBC middleweight world champion, Julio César Chávez Jr. (44-0-1, 31 KOs), faced a 31-year-old fellow Mexican boxer Marco Antonio Rubio (53-5-1, 46 KOs), in a title defense fight.
Chávez Jr. came in to the fight on a 21-fight win streak with a 68% KO rate, and was fighting after a gap of 2 months and 16 days. Rubio was on a 10-fight win streak with a 78% KO rate, and fighting after a layoff of 1 month and 19 days.
Julio César Chávez Jr. defeated Marco Antonio Rubio via unanimous decision and successfully defended his WBC middleweight title. Chávez Jr. improves his record to 45-0-1, while Rubio adds a loss to his record at 53-6-1.
On June 4, 2011, a 25-year-old Julio César Chávez Jr. (42-0-1, 30 KOs) got a shot at the WBC middleweight title held by Sebastian Zbik.
Chávez Jr. came in to the fight on a 19-fight win streak with a 69% KO rate, and was fighting after a gap of 4 months and 6 days.
Julio César Chávez Jr. defeated Sebastian Zbik via majority decision and wins the WBC title — in his first world-title fight. Chávez Jr. improves his record to 43-0-1
On August 19, 2006, a 20-year-old Julio César Chávez Jr. (26-0-1, 20 KOs) and Jermaine White met in the ring in a super-welterweight bout.
Chávez Jr. came in to the fight on a 3-fight win streak with a 74% KO rate, and was fighting after a gap of 2 months and 9 days.
Julio César Chávez Jr. stopped Jermaine White via TKO in the 4th round. Chávez Jr. improves his record to 27-0-1 (21 KOs)
On September 15, 2012, 26-year-old Julio César Chávez Jr. (46-0-1, 32 KOs) and 37-year-old Sergio Martínez (49-2-2, 28 KOs) fought for the vacant middleweight title.
Chávez Jr. came in to the fight on a 23-fight win streak with a 68% KO rate, and was fighting after a gap of 2 months and 30 days. Martínez was on a 5-fight win streak with a 52% KO rate, and fighting after a layoff of 5 months and 29 days.
Sergio Martínez defeated Julio César Chávez Jr. via unanimous decision . Martínez improves his record to 50-2-2, while Chávez Jr. adds a loss to his record at 46-1-1.
On February 9, 2008, a 21-year-old Julio César Chávez Jr. (34-0-1, 27 KOs) and José Celaya met in the ring in a super-welterweight bout.
Chávez Jr. came in to the fight on a 11-fight win streak with a 77% KO rate, and was fighting after a gap of 2 months and 8 days.
Julio César Chávez Jr. stopped José Celaya via TKO in the 8th round. Chávez Jr. improves his record to 35-0-1 (28 KOs)
On June 9, 2007, a 21-year-old Julio César Chávez Jr. (31-0-1, 24 KOs) and Grover Wiley met in the ring.
Chávez Jr. came in to the fight on a 8-fight win streak with a 75% KO rate, and was fighting after a gap of 1 month and 26 days.
Julio César Chávez Jr. stopped Grover Wiley via KO in the 3rd round. Chávez Jr. improves his record to 32-0-1 (25 KOs)
On March 9, 2007, a 21-year-old Julio César Chávez Jr. (29-0-1, 22 KOs) and Raúl Jorge Muñoz met in the ring.
Chávez Jr. came in to the fight on a 6-fight win streak with a 73% KO rate, and was fighting after a gap of 2 months and 21 days.
Julio César Chávez Jr. stopped Raúl Jorge Muñoz via TKO in the 3rd round. Chávez Jr. improves his record to 30-0-1 (23 KOs)
On November 1, 2008, a 22-year-old Julio César Chávez Jr. (37-0-1, 29 KOs) and Matt Vanda met in the ring for the 2nd time,.
Chávez Jr. came in to the fight on a 14-fight win streak with a 76% KO rate, and was fighting after a gap of 3 months and 20 days.
In the rematch, Julio César Chávez Jr. defeated Matt Vanda via unanimous decision in the 10-round fight. Chávez Jr. improves his record to 38-0-1