List of undefeated world boxing 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)
Wales Joe Calzaghe[2] 46–0–0 (0) Super middleweight WBO 1997–2007 21 (WBO), 1 (IBF), 3 (The Ring, lineal), 0 (WBA, WBC) Vacated title to move up to light heavyweight
IBF, The Ring, lineal 2006–2007 Unified WBO, IBF, and The Ring titles. Vacated IBF title to fight Peter Manfredo Jr. instead of #1 contender Robert Stieglitz. Vacated The Ring title to move up to light heavyweight.
WBA, WBC 2007–2008 Unified WBO, WBA, WBC, and The Ring titles. Vacated titles to move up to light heavyweight.
Light heavyweight The Ring 2008 1
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
England 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 injury.
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, WBC, 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. {{cite web}}: Italic or bold markup not allowed in: |publisher= (help)
  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. {{cite web}}: Italic or bold markup not allowed in: |publisher= (help)
  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. {{cite news}}: Italic or bold markup not allowed in: |newspaper= (help)
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