Graph that represents former an current world heavyweight boxing champions by number of opponents beaten in world heavyweight title fights. The list does not include The Ring and lineal championship fights after 1921, although it only includes heavyweight champions that captured undisputed championship (1922–present), lineal championship (1885–1921) or The Ring championship (1922–1989, 2002–).
<p>The list only includes title reigns during which the champion: 
1. has won undisputed championship (1922–present), The Ring championship (1922–1989, 2002–), lineal championship (1885–1921) 
2. unified the titles 
</p>
3. defeated a fighter that either had to drop his own world title prior to the fight due to organization's championship policy or would later become the world champion, while the winner's reign was still active
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