Quote Originally Posted by BK
It depends what you mean by World Champion

Joe Louis held universal recogintion as Heavyweight World Champion for nearly 12 years

Abe Attell held claims to the Featherweight World Championship from 1901 though to 1912

Simon Harrison has held the SHBF heavyweight title from July 1988 to the present day...
1901-1912=11 years he still loses to Louis.