On November 24, 2012, a 36-year-old Carlos Quintana (29-3, 23 KOs) and a 24-year-old American boxer Keith Thurman (18-0, 17 KOs) met in the ring in a super-welterweight bout.
Quintana came in to the fight on a 2-fight win streak with a 71% KO rate, and was fighting after a gap of 6 months and 19 days. Thurman was on a 18-fight win streak with a 94% KO rate, and fighting after a layoff of 4 months and 3 days.
Keith Thurman stopped Carlos Quintana via TKO in the 4th round. Thurman improves his record to 19-0 (18 KOs), while Quintana adds a loss to his record at 29-4.
On April 10, 2010, a 33-year-old Carlos Quintana (27-2, 21 KOs) got a shot at the welterweight WBC title held by 26-year-old American boxer Andre Berto (25-0, 19 KOs).
Quintana came in to the fight on a 2-fight win streak with a 72% KO rate, and was fighting after a gap of 4 months and 5 days. Berto was on a 25-fight win streak with a 76% KO rate, and fighting after a layoff of 10 months and 11 days.
Andre Berto stopped Carlos Quintana via TKO in the 8th round of the 12-round world-title fight, and successfully defended his WBC welterweight title. Berto improves his record to 26-0 (20 KOs), while Quintana adds a loss to his record at 27-3.
On June 7, 2008, Carlos Quintana and Paul Williams met again in an immediate rematch.
Quintana came in to the fight on a 2-fight win streak with a 73% KO rate, and was fighting after a gap of 3 months and 29 days. Williams was on a -1-fight win streak with a 70% KO rate, and fighting after a layoff of 3 months and 29 days.
Paul Williams made quick work of Carlos Quintana in the rematch, stopping the champion via TKO in the 1st. Williams improves his record to 34-1 (25 KOs), while Quintana adds a loss to his record at 25-2.
On December 2, 2006, 30-year-old Carlos Quintana (23-0, 18 KOs) and 26-year-old Miguel Cotto (27-0, 22 KOs) fought for the vacant WBA welterweight title.
Quintana came in to the fight on a 23-fight win streak with a 78% KO rate, and was fighting after a gap of 5 months and 8 days. Cotto was on a 27-fight win streak with a 81% KO rate, and fighting after a layoff of 5 months and 22 days.
Carlos Quintana refused to continue the fight in the 5th round, and Miguel Cotto is crowned the new WBA welterweight world champion. Cotto improves his record to 28-0 (23 KOs), while Quintana adds a loss to his record at 23-1.