[btown32]

IBF - International Boxing Federation

1952-10-30 Muhammad Ali captures initial vacant title vs. Vitali Klitschko (TKO12)
1953-01-31 Rocky Marciano wins title vs. Muhammad Ali (KO10)
1953-04-30 Rocky Marciano retains title vs. James Jeffries (TKO10)
1953-08-30 Rocky Marciano retains title vs. Mustafa Couzee (TKO12)
1953-11-30 Rocky Marciano retains title vs. Rocky Balboa (TKO1)
1953-12-30 Muhammad Ali wins title vs. Rocky Marciano (TKO14)
1954-03-30 Tom Sharkey wins title vs. Muhammad Ali (TKO3)
1954-06-18 Joe Frazier wins title vs. Tom Sharkey (TKO10)
1954-10-20 Cliff Hughes wins title vs. Joe Frazier (KO4)
1955-04-27 Jack Dempsey wins title vs. Cliff Hughes (TKO6)

WBA - World Boxing Association

1952-06-30 Chuck Norton captures initial vacant title vs. Mustafa Couzee (TKO1)
1952-12-31 Chuck Norton retains title vs. Sam Langford (TKO10)
1953-02-28 Chuck Norton retains title vs. Ivan Drago (TKO5)
1953-03-31 Chuck Norton retains title vs. Vitali Klitschko (TKO7)
1953-04-30 Chuck Norton retains title vs. Teofilo Stevenson (TKO3)
1953-11-30 Chuck Norton retains title vs. Harry Wills (DQ9)
1953-12-30 Chuck Norton retains title vs. Harry Wills (KO10)
1954-02-28 Chuck Norton retains title vs. Teofilo Stevenson (KO5)
1954-05-29 Mike Tyson wins title vs, Chuck Norton (KO1)
1954-09-27 Mike Tyson retains title vs. Mustafa Couzee (TKO4)
1955-01-28 Muhammad Ali wins title vs. Mike Tyson (UD15)
1955-05-30 Joe Frazier wins title vs. Muhammad Ali (TKO9)

WBC - World Boxing Council

1952-08-30 Gene Tunney captures initial vacant title vs. Teofilo Stevenson (UD15)
1952-10-30 Riddick Bowe wins title vs. Gene Tunney (UD15)
1953-01-31 Mike Tyson wins title vs. Riddick Bowe (KO5)
1953-02-28 Mike Tyson retains title vs. Peter Jackson (TKO6)
1953-04-30 Mike Tyson retains title vs. Riddick Bowe (TKO6)
1953-05-31 Mike Tyson retains title vs. Gene Tunney (TKO8)
1953-06-30 Mike Tyson retains title vs. Evander Holyfield (TD1)(Cuts)
1953-08-30 Mike Tyson retains title vs. Sam Langford (KO5)
1953-09-30 Mike Tyson retains title vs. James J. Jeffries (KO4)
1953-11-30 Mike Tyson retains title vs. Evander Holyfield (TKO8)
1953-12-30 Larry Holmes wins title vs. Mike Tyson (UD15)
1954-04-22 Larry Holmes retains title vs. Rocky Marciano (TKO14)
1954-08-30 Larry Holmes retains title vs. Ivan Drago (UD15)
1954-12-25 Chuck Norton wins title vs. Larry Holmes (TKO4)

WBO - World Boxing Organization

1952-09-30 Joe Louis captures initial vacant title vs. Ivan Drago (TKO1)
1952-10-30 Joe Louis retains title vs. Apollo Creed (KO8)
1953-02-28 Joe Louis retains title vs. Sam Langford (TKO8)
1953-04-30 Joe Louis retains title vs. Peter Jackson (TKO10)
1953-10-30 Joe Louis retains title vs. Max Schmeling (TKO5)
1953-11-30 Joe Louis retains title vs. Joe Frazier (KO10)
1953-12-30 Joe Louis retains title vs. Earnie Shavers (KO7)
1954-02-28 Joe Louis retains title vs. Sergei Kobozev (TKO15)
1954-05-25 Joe Louis retains title vs. Harry Matthews (KO11)
1954-11-15 Joe Louis retains title vs. Jack Dempsey (TKO14)
1955-04-28 Joe Louis retains title vs. Rocky Marciano (KO4)