Michael Spinks losses
Over 11 years as a professional, Michael Spinks has compiled a 31-1 (21) record, including 16 title fights across two weight classes. His only loss came in a title fight against Mike Tyson.
1. Michael Spinks loses to Mike Tyson via KO
On June 27, 1988 Michael Spinks met Mike Tyson in an undisputed heavyweight title unification fight. Spinks was 31 years old with a record of 31-0, and Tyson was 21 with a record of 34-0. Spinks was on an undefeated 31-fight winning streak and Tyson was on an undefeated 34-fight winning streak. Tyson stopped Spinks via KO in the 1st round. Lost the undisputed title.