Which boxer has won a championship in the most weight classes?
Manny Pacquio
Muhammad Ali
Muhammad Ali
Muhammad Ali
Muhammad Ali
Muhammad Ali
Muhammad Ali
Muhammad Ali
George Foreman
Mike Tyson
Muhammad Ali
Evander Holyfield
George Foreman
Sugar Ray Leonard
Muhammad Ali
Mike Tyson
Evander Holyfield
Muhammad Ali
George Foreman
Floyd Mayweather Jr.
Sugar Ray Leonard
Mike Tyson
Joe Louis
Evander Holyfield
Muhammad Ali
George Foreman
Sugar Ray Leonard
Joe Louis
Mike Tyson
Floyd Mayweather Jr.
Evander Holyfield
Rocky Marciano
Muhammad Ali
Joe Louis
Chuck Liddell
Marvin Hagler
Sugar Ray Leonard
Michael Spinks
Mike Tyson
George Foreman
Floyd Mayweather Jr.
Evander Holyfield
Muhammad Ali
Rocky Marciano
Floyd Mayweather
Joe Louis
Chuck Wepner
Sugar Ray Leonard
Mike Tyson
George Foreman
Chuck Liddell
Floyd Mayweather Jr.
Muhammad Ali
Rocky Marciano
Michael Spinks
Evander Holyfield
Floyd Mayweather
Joe Louis
Chuck Wepner
Sugar Ray Leonard
Mike Tyson
George Foreman
Lenny Leonard
Lenny Florian
Muhammad Ali
Floyd Mayweather Jr.
Joe Louis
Rocky Marciano
Floyd Mayweather
Evander Holyfield
Floyd Mayweather, Jr
Chuck Wepner
Sugar Ray Leonard
Mike Tyson
Michael Spinks
Muhammad Ali
Lenny Leonard
Lenny Florian
Joe Louis
Floyd Mayweather Jr.
George Foreman
Sugar Ray Robinson
Rocky Marciano
Floyd Mayweather
Evander Holyfield
Sugar Ray Leonard
Mike Tyson
Muhammad Ali
Joe Louis
Lenny Leonard
Floyd Mayweather, Jr
Lenny Florian
Sugar Ray Robinson
Rocky Marciano
George Foreman
Floyd Mayweather Jr.
Floyd Mayweather
Michael Spinks
Bob Arum
Evander Holyfield
Sugar Ray Leonard
Muhammad Ali
Mike Tyson
Joe Louis
Lennox Lewis
Bob Fitzpatrick
Sugar Ray Robinson
Lenny Leonard
Rocky Marciano
Floyd Mayweather
Lenny Florian
George Foreman
Floyd Mayweather Jr.
Bob Arum
Evander Holyfield
Muhammad Ali
Sugar Ray Leonard
Mike Tyson
Floyd Mayweather, Jr
Joe Louis
Michael Spinks
Sugar Ray Robinson
Rocky Marciano
Floyd Mayweather
Lenny Leonard
George Foreman
Lenny Florian
Muhammad Ali
Evander Holyfield
Sugar Ray Leonard
Joe Louis
Mike Tyson
Lennox Lewis
Floyd Mayweather Jr.
Larry Holmes
Sugar Ray Robinson
Rocky Marciano
Floyd Mayweather, Jr
Floyd Mayweather
Michael Spinks
Lenny Leonard
Manny Pacheco
Lenny Florian
Joe Louis
Sugar Ray Leonard
Evander Holyfield
Mike Tyson
George Foreman
Larry Holmes
Floyd Mayweather Jr
Floyd Mayweather Jr.
Manny Fernandez
Sugar Ray Robinson
Rocky Marciano
Floyd Mayweather
Joe Louis
Lenny Leonard
Manny Pacheco
Floyd Mayweather, Jr
Lenny Florian
Sugar Ray Leonard
Larry Holmes
Mike Tyson
Michael Spinks
Evander Holyfield
George Foreman
Lennox Lewis
Floyd Mayweather Jr
Len Goodman
Floyd Mayweather Jr.
Sugar Ray Robinson
Rocky Marciano
Floyd Mayweather
Joe Louis
Larry Holmes
Sugar Ray Leonard
Lenny Leonard
Manny Pacheco
Mike Tyson
Lenny Florian
George Foreman
Floyd Mayweather, Jr
Michael Spinks
Frank Bruno
Sugar Ray Robinson
Joe Louis
Floyd Mayweather Jr.
Floyd Mayweather
Sugar Ray Leonard
Mike Tyson
Bob Fitzhugh
Lenny Leonard
Manny Pacheco
Lenny Florian
Floyd Mayweather Jr
Joe Louis
George Foreman
Sugar Ray Robinson
Larry Holmes, Jr.
Floyd Mayweather, Jr
Floyd Mayweather