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On February 20, 2004, Jones relinquished his heavyweight title to resume boxing as a light heavyweight, at which point Ruiz was elevated to full championship recognition. On April 30, 2005, Ruiz was defeated by James Toney in a championship defense, but post-fight drug testing determined Toney had taken Nandrolone , an anabolic steroid .
The first of the current organizations to award a world title was the World Boxing Association (WBA), then known as the National Boxing Association (NBA), when it sanctioned its first title fight in 1921 between Jack Dempsey and Georges Carpentier for the world heavyweight championship.
The only way to win the championship was to beat the current champion. Retirements or disputed results could lead to a championship being split among several men for periods of time. With only minor exceptions, the heavyweight division remained free from dual title-holders until the 1960s.
As professional boxing has four major sanctioning bodies (WBA, WBC, IBF, WBO) each with their own champions, the sport doesn't have a centralized ranking system.The rankings published by these organizations share the trait of not ranking the other organizations' champions, as each one of the sanctioning bodies expects their champion to frequently defend their title against their top-ranked ...
This is a list of WBC world champions, showing every world champion certificated by the World Boxing Council (WBC). The WBC is one of the four major governing bodies in professional boxing , and certifies world champions in 18 different weight classes .
This is a list of IBO world champions, showing every world champion certificated by the International Boxing Organization (IBO) since 1993. r – Champion relinquished title s – Champion stripped of title
Boxing magazine The Ring has awarded world championships in professional boxing within each weight class from its foundation in 1922. The first Ring world title belt was awarded to heavyweight champion Jack Dempsey, and the second was awarded to flyweight champion Pancho Villa. The magazine stopped giving belts to world champions in the 1990s ...
1.1.2 Current world champions. 1.1.3 Current world rankings. ... Below is a list of longest reigning heavyweight champions in boxing measured by the individual's ...