Least rounds per fight
3.3 Tommy Morrison (172/52)
3.7 Mike Tyson (216/58)
3.8 Frank Bruno (170/45)
4.1 Jack Dempsey (283/69)
4.1 Ernie Shavers (367/89) (non-champion)
4.2 Rid**** Bowe (195/46)
4.3 George Foreman (349/81)
4.9 Rocky Marciano (241/49)
4.9 Sonny Liston (267/54)
5.0 Vitali Klitschko (235/47)
5.0 Donovan Ruddock (237/47) (non-champion)
5.1 Wladimir Klitschko (334/66)
5.1 Lennox Lewis (225/44)
5.4 Max Baer (423/79)
5.8 Joe Frazier (213/37)
6.0 Joe Louis (417/69)
6.2 Tim Whitherspoon (426/69)
7.6 Evander Holyfield (443/58)
8.9 Muhammad Ali (548/61)
Least rounds per won/drawn world title fight
1,00 Sonny Liston (2)
4,60 Jack Dempsey (5)
4,67 Mike Tyson (12)
5,40 Rid**** Bowe (5)
6,59 Joe Louis (27)
6,70 Joe Frazier (10)
7,06 Lennox Lewis (16)
7,29 George Foreman (7)
7,87 Vitali Klitscho (15)
8,00 Tommy Morrison (2)
8,04 Wladimir Klitscho (25)
9,33 Evander Holyfield (12)
9,43 Rocky Marciano (7)
10,3 Deontay Wilder (4)
10,4 Muhammad Ali (22)
11,0 Max Baer (1)
12,0 Frank Bruno (1)
12,7 Tim Whitherspoon (3)
3.3 Tommy Morrison (172/52)
3.7 Mike Tyson (216/58)
3.8 Frank Bruno (170/45)
4.1 Jack Dempsey (283/69)
4.1 Ernie Shavers (367/89) (non-champion)
4.2 Rid**** Bowe (195/46)
4.3 George Foreman (349/81)
4.9 Rocky Marciano (241/49)
4.9 Sonny Liston (267/54)
5.0 Vitali Klitschko (235/47)
5.0 Donovan Ruddock (237/47) (non-champion)
5.1 Wladimir Klitschko (334/66)
5.1 Lennox Lewis (225/44)
5.4 Max Baer (423/79)
5.8 Joe Frazier (213/37)
6.0 Joe Louis (417/69)
6.2 Tim Whitherspoon (426/69)
7.6 Evander Holyfield (443/58)
8.9 Muhammad Ali (548/61)
Least rounds per won/drawn world title fight
1,00 Sonny Liston (2)
4,60 Jack Dempsey (5)
4,67 Mike Tyson (12)
5,40 Rid**** Bowe (5)
6,59 Joe Louis (27)
6,70 Joe Frazier (10)
7,06 Lennox Lewis (16)
7,29 George Foreman (7)
7,87 Vitali Klitscho (15)
8,00 Tommy Morrison (2)
8,04 Wladimir Klitscho (25)
9,33 Evander Holyfield (12)
9,43 Rocky Marciano (7)
10,3 Deontay Wilder (4)
10,4 Muhammad Ali (22)
11,0 Max Baer (1)
12,0 Frank Bruno (1)
12,7 Tim Whitherspoon (3)
Comment