On November 24, 1995, a 36-year-old Carlos De León (53-7-1, 33 KOs) and a 30-year-old Danish boxer Brian Nielsen (22-0, 10 KOs) met in the ring.
León came in to the fight on a 1-fight losing streak with a 54% KO rate, and was fighting after a gap of 1 year, 3 months, and 11 days. Nielsen was on a 22-fight win streak with a 45% KO rate, and fighting after a layoff of 1 month and 4 days.
Brian Nielsen stopped Carlos De Leon via TKO in the 3rd round. Nielsen improves his record to 23-0 (11 KOs), while León adds a loss to his record at 53-8-1.
On August 13, 1994, a 35-year-old Carlos De León (53-6-1, 33 KOs) and a 28-year-old South African boxer Corrie Sanders (23-1, 16 KOs) met in the ring.
León came in to the fight on a 8-fight win streak with a 55% KO rate, and was fighting after a gap of 5 months and 27 days. Sanders was on a -1-fight win streak with a 66% KO rate, and fighting after a layoff of 2 months and 23 days.
Corrie Sanders stopped Carlos de León via TKO in the 1st round. Sanders improves his record to 24-1 (17 KOs), while León adds a loss to his record at 53-7-1.
On July 27, 1990, the 31-year-old WBC cruiserweight world champion, Carlos De León (45-5-1, 30 KOs), faced Massimiliano Duran, in a title defense fight.
León came in to the fight after a draw in his last fight with a 58% KO rate, and was fighting after a gap of 6 months.
Carlos De León was defending his cruiserweight WBC titles against Massimiliano Duran and lost via disqualification in the 12-round cruiserweight fight, and adds an loss to his record at 45-6-1.
On April 9, 1988, the 28-year-old WBC cruiserweight champion, Carlos De León (44-4, 29 KOs), and the 25-year-old WBA and IBF cruiserweight champion Evander Holyfield (17-0, 13 KOs) faced each other for the undisputed world championpionship.
León came in to the fight on a 5-fight win streak with a 60% KO rate, and was fighting after a gap of 2 months and 18 days. Holyfield was on a 17-fight win streak with a 76% KO rate, and fighting after a layoff of 4 months and 4 days.
Evander Holyfield stopped Carlos de León via TKO in the 8th round and unified the WBC, WBA, and IBF cruiserweight titles. Holyfield improves his record to 18-0 (14 KOs), while León adds a loss to his record at 44-5.
On June 6, 1985, the 26-year-old WBC and The Ring cruiserweight world champion, Carlos De León (39-3, 26 KOs), faced Alfonzo Ratliff, in a title defense fight.
León came in to the fight on a 7-fight win streak with a 61% KO rate, and was fighting after a gap of 4 months and 25 days.
Carlos De León was defending his cruiserweight WBC and The Ring titles against Alfonzo Ratliff and lost via split decision in the 12-round cruiserweight fight, and adds an loss to his record at 39-4.
On June 27, 1982, the 23-year-old WBC cruiserweight world champion, Carlos De León (32-2, 23 KOs), faced S.T. Gordon, in a title defense fight.
León came in to the fight on a 17-fight win streak with a 67% KO rate, and was fighting after a gap of 4 months and 3 days.
Carlos De León was defending his cruiserweight WBC titles against S.T. Gordon and lost via TKO in the 2nd round, and adds an loss to his record at 32-3.
On September 10, 1977, an 18-year-old Carlos De León (15-1, 9 KOs) and Ray Hammond met in the ring.
León came in to the fight on a 7-fight win streak with a 56% KO rate, and was fighting after a gap of 1 month and 12 days.
Carlos De León lost to Ray Hammond via points decision in the 8-round fight, and adds an loss to his record at 15-2.
On February 15, 1976, a 16-year-old Carlos De León (8-0, 7 KOs) and Roberto Colon met in the ring.
León came in to the fight on a 8-fight win streak with a 87% KO rate, and was fighting after a gap of 5 months.
Carlos De León lost to Roberto Colon via points decision in the 4-round fight, and adds an loss to his record at 8-1.