1981
WBA Heavyweight Championship: Larry Holmes retains his title in a three-round bout against Leon Spinks.

1982
WBA Heavyweight Championship: Michael Dokes knocked out Mike Deaver in the first round.

1983
WBA Heavyweight Championship: Gerrie Coatzee knocked out Michael Dokes in ten rounds.

1984
WBA Heavyweight Championship: Greg Page knocked out Gerrie Coetzee in the 8th round.
WBC Heavyweight Championship: Tim Witherspoon outpointed Greg Page in a 12 round-bout.
IBF Heavyweight Championship: Larry Holmes knocked out James "Bonecrusher" Smith in the 12th round.

1985
WBA Heavyweight Championship: Tony Tubbs in a 15-round decision over Greg Page.
IBF Heavyweight Championship: Michael Spinks in 15 round decision over Larry Holmes.

1986
WBC Heavyweight Championship: Trevor Berbick in a 12-round decision over Pinklon Thomas.
WBC Heavyweight Championship: Mike Tyson knocks out Trevor Berbick in the 2nd round (November 2nd).
WBA Heavyweight Championship: James "Bonecrusher" Smith knocks out Tim Witherspoon in the 1st round.

1987
WBA and WBC Combined Heavyweight Championship: Mike Tyson defeats James "Bonecrusher" Smith in an unanimous 15-round decision.
Unified Heavyweight Boxing Championship: Mike Tyson wins unanimously in 12 rounds over Tony Tucker.

1988
Heavyweight Boxing Championship: Mike Tyson knocks out Michael Spinks in 1 minute and 13 seconds for the title.

1989
Heavyweight Boxing Championship: Mike Tyson gives Frank Bruno a TKO in the fifth round.