Top 20 Boxers That Retired Undefeated. With Highlights HD 2015.

1) Rocky Marciano (49-0) (43 KO)
2) Floyd Mayweather Jr. (49-0) (26 KO)
3) Packey Mcfarland (70-0-5) (50 KO)
4) Ricardo Lopez (51-0-1) (38 KO)
5) Joe Calzaghe (46-0) (32 KO)
6) Edwin Valero (27-0) (27 KO)
7) Laszlo Papp (27-0-1) (15 KO)
8) Jimmy Barry (59-0-10) (40 KO)
9) Harry Simon (29-0) (21 KO)
10) Ike Ibeabuchi (20-0) (15 KO)
11) Terry Marsh (26-0-1) (10 KO)
12) Sven Ottke (34-0) (6 KO)
13) Jack McAuliffe (28-0) (10 KO)
14) Lee Canalito (21-0) (19 KO)
15) Kenny Klingman (22-0) (21 KO)
16) Joe Mesi (36-0) (29 KO)
17) Mihai Leu (28-0) (10 KO)
18) Pichit Sithbanprachan (24-0) (18 KO)
19) Samson Dutch Boy Gym (43-0) (36 KO)
20) Scott Daley (24-0) (24 KO)

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