On September 8, 2012, the 26-year-old WBC lightweight world champion, Antonio DeMarco (27-2-1, 20 KOs), faced a 29-year-old American boxer John Molina Jr. (24-1, 19 KOs), in a title defense fight.
DeMarco came in to the fight on a 4-fight win streak with a 66% KO rate, and was fighting after a gap of 5 months and 22 days. Molina Jr. was on a 6-fight win streak with a 76% KO rate, and fighting after a layoff of 2 months and 16 days.
Antonio DeMarco made quick work of John Molina Jr., stopping the challenger via TKO in the 1st. DeMarco improves his record to 28-2-1 (21 KOs), while Molina Jr. adds a loss to his record at 24-2.
On March 17, 2012, the 26-year-old WBC lightweight world champion, Antonio DeMarco (26-2-1, 19 KOs), faced Miguel Román, in a title defense fight.
DeMarco came in to the fight on a 3-fight win streak with a 65% KO rate, and was fighting after a gap of 5 months and 2 days.
Antonio DeMarco stopped Miguel Román via KO in the 5th round of the 12-round world-title fight, and successfully defended his WBC lightweight title. DeMarco improves his record to 27-2-1 (20 KOs)
On October 15, 2011, 25-year-old Antonio DeMarco (25-2-1, 18 KOs) and 26-year-old Jorge Linares (31-1, 20 KOs) fought for the vacant WBC lightweight title.
DeMarco came in to the fight on a 2-fight win streak with a 64% KO rate, and was fighting after a gap of 7 months and 19 days. Linares was on a 4-fight win streak with a 62% KO rate, and fighting after a layoff of 4 months and 17 days.
Antonio DeMarco stopped Jorge Linares via TKO in the 11th round of the 12-round world-title fight. DeMarco improves his record to 26-2-1 (19 KOs), while Linares adds a loss to his record at 31-2.
On October 31, 2009, a 23-year-old Antonio DeMarco (22-1-1, 16 KOs) and José Alfaro met in the ring in a lightweight bout.
DeMarco came in to the fight on a 11-fight win streak with a 66% KO rate, and was fighting after a gap of 3 months and 20 days.
Antonio DeMarco stopped José Alfaro via TKO in the 10th round. DeMarco improves his record to 23-1-1 (17 KOs)
On February 7, 2009, a 23-year-old Antonio DeMarco (20-1-1, 14 KOs) and Almazbek Raiymkulov met in the ring in a lightweight bout.
DeMarco came in to the fight on a 9-fight win streak with a 63% KO rate, and was fighting after a gap of 5 months and 2 days.
Antonio DeMarco stopped Almazbek Raiymkulov via RTD in the 9th round. DeMarco improves his record to 21-1-1 (15 KOs)
On August 10, 2013, a 27-year-old Antonio DeMarco (28-3-1, 21 KOs) and Fidel Muñoz met in the ring.
DeMarco came in to the fight on a 1-fight losing streak with a 65% KO rate, and was fighting after a gap of 8 months and 24 days.
Antonio DeMarco stopped Fidel Muñoz via TKO in the 5th round. DeMarco improves his record to 29-3-1 (22 KOs)
On November 22, 2014, a 28-year-old Antonio DeMarco (31-3-1, 23 KOs) got a shot at the super-lightweight WBA (Regular) title held by 25-year-old American boxer Jessie Vargas (25-0, 9 KOs).
DeMarco came in to the fight on a 3-fight win streak with a 65% KO rate, and was fighting after a gap of 2 months and 30 days. Vargas was on a 25-fight win streak with a 36% KO rate, and fighting after a layoff of 3 months and 20 days.
Jessie Vargas defeated Antonio DeMarco via unanimous decision and successfully defended his WBA (Regular) super-lightweight title. Vargas improves his record to 26-0, while DeMarco adds a loss to his record at 31-4-1.
On October 14, 2017, a 31-year-old Antonio DeMarco (32-6-1, 23 KOs) and Eddie Ramirez met in the ring.
DeMarco came in to the fight on a 1-fight win streak with a 59% KO rate, and was fighting after a gap of 8 months and 3 days.
Antonio DeMarco stopped Eddie Ramirez via TKO in the 1st round. DeMarco improves his record to 33-6-1 (24 KOs)
On July 28, 2007, a 21-year-old Antonio DeMarco (14-1-1, 11 KOs) and Roberto Valenzuela met in the ring.
DeMarco came in to the fight on a 3-fight win streak with a 68% KO rate, and was fighting after a gap of 22 days.
Antonio DeMarco stopped Roberto Valenzuela via TKO in the 1st round. DeMarco improves his record to 15-1-1 (12 KOs)
On January 11, 2014, a 28-year-old Antonio DeMarco (29-3-1, 22 KOs) and Jesus Gurrola met in the ring.
DeMarco came in to the fight on a 1-fight win streak with a 66% KO rate, and was fighting after a gap of 5 months and 1 day.
Antonio DeMarco stopped Jesus Gurrola via TKO in the 2nd round. DeMarco improves his record to 30-3-1 (23 KOs)