<P> Julio César Chávez González (Spanish pronunciation: (ˈxuljo ˈsesaɾ ˈtʃaβes ɣonˈsales); born July 12, 1962), also known as Julio César Chávez Sr., is a Mexican former professional boxer who competed from 1980 to 2005 . He is considered by acclamation as the greatest Mexican boxer of all time, and one of the greatest boxers of all time . </P> <P> Chávez is a six - time world champion in three weight divisions, and for several years was considered the best active boxer in the world, pound for pound . During his career he held the WBC super featherweight title from 1984 to 1987; the WBA lightweight title from 1987 to 1989; the WBC lightweight title from 1988 to 1989; the WBC light welterweight title twice between 1989 and 1996; and the IBF light welterweight title from 1990 to 1991 . Additionally, he held The Ring magazine lightweight title from 1988 to 1989, and the lineal light welterweight title twice between 1990 and 1996 . Chávez was named Fighter of the Year for 1987 and 1990 by the Boxing Writers Association of America and The Ring magazine respectively . </P> <P> Chávez holds the records for the most total successful defenses of world titles (27, shared with Omar Narváez), most title fight victories (31), and most title fights (37); he has the second most title defenses won by knockout (21, after Joe Louis with 23). He holds the longest undefeated streak in boxing history, at 13 years . His fight record was 89 wins, 0 losses, and 1 draw before his first professional loss to Frankie Randall in 1994, before which he had an 87 - fight win streak until his draw with Pernell Whitaker in 1993 . Chávez' 1993 win over Greg Haugen at the Estadio Azteca set the record for the largest attendance for a boxing match: 132,274 . </P> <P> Chávez was known for his outstanding punching power, devastating body attack, remarkably strong chin and the relentless stalking of his opponents . He ranks #24 on ESPN's list of "50 Greatest Boxers of All Time", and ranks #18 on Ring Magazine's "80 Best Fighters of the Last 80 Years". In 2010 he was inducted into the prestigious International Boxing Hall of Fame for the Class of 2011 . He is the father of current boxers Omar Chávez and former WBC middleweight champion Julio César Chávez Jr . </P>

Who has the longest winning streak in boxing
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