1906 / 1908 TOMMY BURNS
1919/26 JACK DEMPSEY
1926/28 GENE TUNNEY
1930/32 MAX SCHMELING
1932/33 JACK SHARKEY
1933/34 PRIMO CARNERA
1934/35 MAX BAER
1935/37 James J. Braddock
1937/49 JOE LOUIS
1949 / 1951 EZZARD CHARLES
1951/52 JERSEY JOE WALCOTT
1952/56 ROCKY MARCIANO
1956/59 FLOYD PATTERSON
1959/60 INGEMAR JOHANSSON / 1960/62 FLOYD PATTERSON
1962/64 SONNY LISTON
1964/67 MUHAMMAD ALI
1965/67 ERNIE TERRELL
1968/70 JIMMY ELLIS
1970/73 JOE FRAZIER
1973/74 GEORGE FOREMAN
1974/78 MUHAMMAD ALI
1978 KEN NORTON
1978 LEON SPINKS
1978/85 LARRY HOLMES
1982/83 MICHAEL DOCKES
1984/85 GREG PAGE
1986 TIM WITHERSPOON
1986 TREVOR BERBICK
1986/87 JAMES SMITH
1985/87 MICHAEL SPINKS
1987 TONY TUCKER
1986/90 MIKE TYSON
1990 JAMES BUSTER DOUGLAS
1990/92 EVANDER HOLYFIELD
1991 RAY MERCER
1992/93 MICHAEL MOORER
1993 TOMMY MORRISON
1992/93 RIDDICK BOWE
1993/94 EVANDER HOLYFIELD
1992/94 LENNOX LEWIS
1994 MICHAEL MOORER
1994/95 GEORGE FOREMAN
1995/96 RIDDICK BOWE
1995/96 BRUCE SELDON
1996 HENRY AKINWANDE
1996 FRANK BRUNO
1996 MIKE TYSON
1996/99 EVANDER HOLYFIELD
1997/01 LENNOX LEWIS
1997/99 HERBIE HIDE
1999/00 VITALI KLITSCHKO
2000 CHRIS BYRD
2000/03 WLADIMIR KLITSCHKO
2001/03 JOHN RUIZ
2001/04 LENNOX LEWIS
2001 HASIM RAHMAN
2003/04 ROY JONES JR
2003 CORRIE SANDERS
2004/08 VITALI KLITSCHKO
2004/06 LAMON BREWSTER
2005/07 NICOLAY VALUEV
2006/07 SHANNON BRIGGS
2007/08 RUSLAN CHAGAEV
2008 SAMUEL PETER
2009/11 DAVID HAYE
2006/2014 WLADIMIR KLITSCHKO
2014/2015 BERMANE STIVERNE
2015 DEONTAY WILDER
2015 TYSON FURY
2016 CHARLES MARTIN
2016 JOSEPH PARKER
2017 ANTHONY JOSHUA