Floyd Mayweather Sr. has six losses against five opponents on his boxing record. For a list of Mayweather Sr.'s best fights, refer to "Best fights of Floyd Mayweather Sr.".
On November 3, 1990 Floyd Mayweather Sr. faced off against Roger Turner at age 38. He was coming in with a record of 28-6-1 (17). Mayweather Sr. lost the fight via 10-round unanimous decision.
On April 26, 1985 Floyd Mayweather Sr. faced off against Marlon Starling in a welterweight bout at age 32. He was coming in with a record of 28-5-1 (17), and Starling was 25 years old and with a record of 32-3 (20). Mayweather Sr. lost the fight via 12-round unanimous decision.
On April 12, 1984 Floyd Mayweather Sr. faced off against Clayton Hires at age 31. He was coming in with a record of 28-4-1 (17). Mayweather Sr. lost the fight via 10-round unanimous decision.
On March 9, 1981 Floyd Mayweather Sr. faced off against Marlon Starling at age 28. He was coming in with a record of 19-3 (11), and Starling was 21 years old and with a record of 14-0 (8). Mayweather Sr. lost the fight via 10-round unanimous decision.
On September 9, 1978 Floyd Mayweather Sr. faced off against Sugar Ray Leonard at age 25. He was coming in with a record of 15-2 (7), and Leonard was 22 years old and with a record of 13-0 (8). Mayweather Sr. lost the fight via 10th-round TKO.
On May 22, 1975 Floyd Mayweather Sr. faced off against Tyrone Phelps at age 22. He was coming in with a record of 4-1 (3). Mayweather Sr. lost the fight via 2nd-round TKO.
