Oscar Bonavena has nine losses against eight opponents on his boxing record. For a list of Bonavena's best fights, refer to "Best fights of Oscar Bonavena".
On March 19, 1974 Oscar Bonavena faced off against Ron Lyle at age 31. He was coming in with a record of 51-9-1 (40), and Lyle was 33 years old and with a record of 26-1-1 (19). Bonavena lost the fight via 12-round unanimous decision.
On February 11, 1972 Oscar Bonavena faced off against Floyd Patterson at age 29. He was coming in with a record of 47-8-1 (37), and Patterson was 37 years old and with a record of 53-7-1 (39). Bonavena lost the fight via 10-round unanimous decision.
On December 7, 1970 Oscar Bonavena faced off against Muhammad Ali at age 28. He was coming in with a record of 46-7-1 (37), and Ali was 28 years old and with a record of 30-0 (24). Bonavena lost the fight via 15th-round TKO.
On January 10, 1970 Oscar Bonavena faced off against Miguel Angel Paez at age 27. He was coming in with a record of 41-6-1 (32). Bonavena lost the fight via 7-round disqualification.
On December 10, 1968 Oscar Bonavena faced off against Joe Frazier in a heavyweight bout at age 26. He was coming in with a record of 38-5 (29), and Frazier was 24 years old and with a record of 21-0 (19). Bonavena lost the fight via 15-round unanimous decision.
On December 2, 1967 Oscar Bonavena faced off against Jimmy Ellis at age 25. He was coming in with a record of 31-4 (25), and Ellis was 27 years old and with a record of 24-5 (12). Bonavena lost the fight via 12-round unanimous decision.
On September 21, 1966 Oscar Bonavena faced off against Joe Frazier at age 23. He was coming in with a record of 21-3 (17), and Frazier was 22 years old and with a record of 11-0 (11). Bonavena lost the fight via 10-round split decision.
On March 12, 1966 Oscar Bonavena faced off against Jose Giorgetti at age 23. He was coming in with a record of 19-2 (17). Bonavena lost the fight via 8-round disqualification.
On February 26, 1965 Oscar Bonavena faced off against Zora Folley at age 22. He was coming in with a record of 8-1 (7), and Folley was 33 years old and with a record of 68-7-4 (38). Bonavena lost the fight via 10-round unanimous decision.
