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All undefeated world champions in boxing history

When boxers become champions, there is often an expectation that one day they will be defeated and lose their belt.

For these 15 fighters, however, this was not the case. We take a look at all 15 undefeated male champions.

Undefeated male boxing champions

Boxer

Record

Weight class

Jimmy Barry

61–0–10

Bantamweight

Joe Calzaghe

46–0–0

Super middleweight, Light heavyweight

Kim Ji-won

16–0–2

Super bantamweight

Mihai Leu

28–0–0

Welterweight

Ricardo Lopez

51–0–1

Minimumweight, Light flyweight

Rocky Marciano

49–0–0

Heavyweight

Terry Marsh

26–0–1

Light welterweight

Floyd Mayweather Jr.

50–0–0

Super featherweight, lightweight, light welterweight, welterweight, light middleweight

Jack McAuliffe

27–0–10

Lightweight

Sven Ottke

34–0–0

Super middleweight

Dmitry Pirog

20–0–0

Middleweight

Harry Simon

31–0–0

Light middleweight, middleweight

Pichit Sitbangprachan

24–0–0

Flyweight

Edwin Valero

27–0–0

Super featherweight, lightweight

Andre Ward

32–0–0

Super middleweight, light heavyweight

Some famous names make up the list, including Floyd Mayweather Jr. who won titles in five different weight classes. Only Oscar De La Hoya and Manny Pacquiao have won more division titles in boxing history.

Joe Calzaghe is another distinguished name, boasting a 46-0-0 record. The "Pride of Wales" retired on 5th February 2009, and was hailed by Ricky Hatton as "the best British fighter we've ever had." High praise.

One of the more remarkable fighters on the list is the American Jimmy Barry. While Barry fought when the bantamweight category was not fully established, don't let this take away from the fact that he was undefeated in 71 bouts.

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