List of undefeated boxing world champions

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This is a list of world champions in professional boxing who retired undefeated, either during or after a title reign(s). It excludes current titleholders. Each champion's record is shown in the following format: wins–losses–draws–no contests.

Boxer Record Weight class Title(s) Championship years Title defenses Notes
United States Jimmy Barry[1] 59–0–9 (2) Bantamweight World 1894–1899 6 (3 draws)
United Kingdom Joe Calzaghe[2] 46–0–0 (0) Super middleweight WBO 1997–2008 21 Vacated title to move up to light heavyweight.
IBF 2006 1 Vacated title to fight Peter Manfredo Jr. instead of #1 contender Robert Stieglitz.
The Ring, lineal 2006–2008 3 Vacated titles to move up to light heavyweight.
WBA, WBC 2007–2008 0
Light heavyweight The Ring 2008 1 Retired and vacated title.
South Korea Kim Ji-won[3] 16–0–2 (0) Super bantamweight IBF 1985–1986 4
Romania Mihai Leu[4] 28–0–0 (0) Welterweight WBO 1997 1 Forced to retire from boxing due to an injury.
Mexico Ricardo López[3] 51–0–1 (0) Minimumweight WBC 1990–1998 22 Vacated title to move up to light flyweight.
WBO 1997–1998 0 Unified WBC and WBO titles. Stripped of WBO title for saying he wanted to give the belt to his father.[5]
WBA 1998 0 Vacated title to move up to junior flyweight.
Light flyweight IBF 1999–2002 2
United States Rocky Marciano[3][6] 49–0–0 (0) Heavyweight World 1952–1956 6
United Kingdom Terry Marsh[3][4] 26–0–1 (0) Light welterweight IBF 1987 1 Forced to retire due to epilepsy.
United States Floyd Mayweather Jr.[7] 50–0–0 (0) Super featherweight WBC 1998–2002 8 Vacated title to move up to lightweight.
Lightweight WBC 2002–2004 3 Vacated title to move up to light welterweight.
Light welterweight WBC 2005–2006 0 Vacated title to move up to welterweight.
Welterweight WBA, WBC 2006–2008, 2011–2015 8 Retired at 49–0 in 2015; returned in 2017 for non-title McGregor fight and then retired again.
Light middleweight WBA, WBC 2007, 2012–2015, 2017 2
United States Jack McAuliffe[8] 30–0–5 (1) Lightweight World 1886–1893 7–0–2 (0)
Germany Sven Ottke[3] 34–0–0 (0) Super middleweight IBF 1998–2004 21
WBA 2003–2004 4 Defended IBF title and defeated WBA champion to become WBA Super champion.
Russia Dmitry Pirog 20–0–0 (0) Middleweight WBO 2010–2012 3 Forced to retire from boxing due to chronic back injuries.
Namibia Harry Simon[9] 30–0–0 (0) Light middleweight WBO 1998–2001 4 Vacated title to move up to middleweight.
Middleweight WBO 2002 0 Won WBO interim middleweight title in 2001 and the outright title in 2002. Stripped of title at 29–0 when he was unable to defend it due to injuries suffered in a car crash. Had one more non-title fight before retiring.
Thailand Pichit Sitbangprachan[9] 24–0–0 (0) Flyweight IBF 1992–1994 5 Retired at 21–0 and then made a comeback.
Venezuela Edwin Valero[10] 27–0–0 (0) Super featherweight WBA 2006–2008 4 Vacated title to move up to lightweight.
Lightweight WBC 2009–2010 2 Vacated title to move up to light welterweight. Committed suicide after allegedly killing his wife in 2010. All 27 fights were knockout wins.
United States Andre Ward[11] 32–0–0 (0) Super middleweight WBA 2009–2015 6 Vacated titles in 2015 to move up to light heavyweight.
WBC, The Ring, lineal 2011–2015 1 (WBC), 2 (The Ring, lineal)
Light heavyweight WBA, WBO, The Ring, lineal 2016–2017 1 (WBA, IBF, WBO), 0 (The Ring, lineal)

See also

References

  1. ^ "Jimmy Barry". Cyber Boxing Zone. Retrieved December 27, 2014. 
  2. ^ "Undefeated Calzaghe quits boxing". BBC. February 5, 2009. Retrieved August 31, 2013. 
  3. ^ a b c d e "US elite join race for Calzaghe". BBC. November 17, 2008. Retrieved August 31, 2013. 
  4. ^ a b Justin Tate (June 20, 2011). "Boxing: David Haye and 7 Greatest Fighters to Retire with Less Than 30 Bouts: People Who Did Not Make My List at All". Bleacher Report. Retrieved August 31, 2013. 
  5. ^ "Jamili Takes Strawweight Title". New York Times. Retrieved December 27, 2014. 
  6. ^ "Undefeated heavyweight boxing champion, boxing". Guinness World Records. Retrieved August 31, 2013. 
  7. ^ Undefeated Floyd Mayweather confirms retirement, Sky Sports, 13/09/2015
  8. ^ "Jack McAuliffe". Cyber Boxing Zone. Retrieved December 27, 2014. 
  9. ^ a b Michael Rosenthal. "10: Boxers who finished careers undefeated". The Ring magazine. Retrieved August 31, 2013. 
  10. ^ Justin Tate (June 20, 2011). "Boxing: David Haye and 7 Greatest Fighters to Retire with Less Than 30 Bouts: 7. Edwin Valero". Bleacher Report. Retrieved August 31, 2013. 
  11. ^ Graham, Bryan Armen (21 September 2017). "Andre Ward, boxing's pound-for-pound world No1, announces shock retirement". The Guardian. Retrieved 21 September 2017. 
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