Winning multiple world titles in boxing was a little harder several decades ago as there were just eight different weight divisions in the sport. Today there are 18 weight classes mainly due to the introduction of junior and super divisions as well the cruiserweight class. Some four-division champs have achieved the feat by gaining just 10 lbs between weight classes while others have had to bulk up by at least 40 lbs.
The list below consists of the top 16 boxers to win at least four major world or lineal championships in different weight classes throughout their careers. Major world titles are those sanctioned by the IBF, WBO, WBC, and WBA. There have been several other boxers to win four or more different weight classes, but these include fringe titles from organizations such as the IBO, WBF, WBU, and NBA.
Before getting underway, we’ll list the current divisions and their weight limits: Jr. Minimumweight (102 lbs), Minimumweight (105), Light Flyweight (108), Flyweight (112), Super Flyweight (115), Bantamweight (118), Super Bantamweight (122), Featherweight (126), Super Featherweight (130), Lightweight (135), Super Lightweight (140), Welterweight (147), Super Welterweight (154), Middleweight (160), Super Middleweight (168), Light Heavyweight (175), Cruiserweight (200) and Heavyweight (unlimited).
16. Leo Gamez
Leo Gamez is probably the least unknown boxer listed here as the native of Venezuela fought in the lower weight classes. Gamez won four WBA World Titles in total at minimumweight, light flyweight, flyweight and super flyweight. Gamez’s four titles were separated by just 10 lbs, but that was about 10 per cent of his body weight. He fought from 1985 to 2005 with a record of 35-12-1 along with 26 Kos. However, six of his losses came in his last nine bouts. Gamez became the first flyweight boxer in history to win titles in four different weight classes. He attempted to make it five, but was beaten by WBA Champion Johnny Bredhal by unanimous decision when he tried to win a bantamweight crown in 2002.
http://www.wbaboxing.com/wp-content/uploads/2012/09/LEO-GAMEZ-WBA-CHAMPION.jpg Source: World Boxing Association