Marvin Johnson has six losses against five opponents on his boxing record. For a list of Johnson's best fights, refer to "Best fights of Marvin Johnson".
On May 23, 1987 Marvin Johnson met Leslie Stewart in a light-heavyweight (WBA) world-title defense fight. Johnson was 33 years old and with a record of 43-6 (35), and Stewart was 26 years old and with a record of 23-1 (15). Johnson lost the fight via 8th-round retirement and lost the title.
On March 28, 1981 Marvin Johnson faced off against Michael Spinks at age 26. He was coming in with a record of 27-5 (21), and Spinks was 24 years old and with a record of 15-0 (10). Johnson lost the fight via 4th-round KO.
On March 31, 1980 Marvin Johnson met Eddie Mustafa Muhammad in a light-heavyweight (WBA) world-title defense fight. Johnson was 25 years old and with a record of 24-4 (18). Johnson lost the fight via 11th-round TKO and lost the title.
On April 22, 1979 Marvin Johnson met Matthew Saad Muhammad in a light-heavyweight (WBC) world-title defense fight. Johnson was 25 years old and with a record of 22-3 (17), and Muhammad was 24 years old and with a record of 22-3-2 (15). Johnson lost the fight via 8th-round TKO and lost the title.
On June 17, 1978 Marvin Johnson faced off against Lottie Mwale at age 24. He was coming in with a record of 20-2 (16). Johnson lost the fight via 8-round points decision.
On July 26, 1977 Marvin Johnson faced off against Matthew Saad Muhammad in a light-heavyweight bout at age 23. He was coming in with a record of 15-1 (12), and Muhammad was 22 years old and with a record of 15-3-2 (9). Johnson lost the fight via 12th-round TKO.
