Carlos De León has eight losses against eight opponents on his boxing record. For a list of De León's best fights, refer to "Best fights of Carlos De León".
On November 24, 1995 Carlos De León faced off against Brian Nielsen at age 36. He was coming in with a record of 53-8-1 (33), and Nielsen was 30 years old and with a record of 22-0 (10). De León lost the fight via 3rd-round TKO.
On August 13, 1994 Carlos De León faced off against Corrie Sanders at age 35. He was coming in with a record of 53-7-1 (33), and Sanders was 28 years old and with a record of 23-1 (16). De León lost the fight via 1st-round TKO.
On July 27, 1990 Carlos De León met Massimiliano Duran in a cruiserweight (WBC) world-title defense fight. De León was 31 years old and with a record of 45-6-1 (30). De León lost the fight via 11-round disqualification and lost the title.
On April 9, 1988 Carlos De León, the WBC champion, met Evander Holyfield, the WBA and IBF champion, in a cruiserweight world-title unification fight. De León was 28 years old and with a record of 44-5 (29), and Holyfield was 25 years old and with a record of 17-0 (13). De León lost the fight via 8th-round TKO and lost his title.
On June 6, 1985 Carlos De León met Alfonzo Ratliff in a cruiserweight (WBC, The Ring) world-title defense fight. De León was 26 years old and with a record of 39-4 (26). De León lost the fight via 12-round split decision and lost the titles.
On June 27, 1982 Carlos De León met S.T. Gordon in a cruiserweight (WBC) world-title defense fight. De León was 23 years old and with a record of 32-3 (23). De León lost the fight via 2nd-round TKO and lost the title.
On September 10, 1977 Carlos De León faced off against Ray Hammond at age 18. He was coming in with a record of 15-2 (9). De León lost the fight via 8-round points decision.
On February 15, 1976 Carlos De León faced off against Roberto Colon at age 16. He was coming in with a record of 8-1 (7). De León lost the fight via 4-round points decision.
