Middleweight

In boxing, the term Middleweight is used for a specific group of people based on weight. A middleweight is a boxer weight does not exceed 160 pounds (73 kg).
Boxing organizations created many divisions so that fighters could fight people of the same size. 
The first heavyweight champion under modern rules was Irish boxer Jack (Nonpareil) Dempsey.
Famous heavyweight champions have include Bob Fitzsimmons, Nino Benvenuti, Rocky Graziano, Marvin Hagler, Bernard Hopkins, Roy Jones Jr., Jake LaMotta, Carlos Monzon, 
Sugar Ray Robinson, Tony Zale and Sugar Ray Leonard.