Who is unique among all boxing heavyweight champions to this day in having been world champion without winning a single title fight?

We begin with the original king John L. Sullivan and continue our journey to the present day.

In 1885, Sullivan's win over Dominick McCaffrey took recognition as were the lineal championship officially began.

Even though Sullivan didn't defend his crown through four years between 1888 and 1892, a defense against undefeated James J. Corbett is in the record books as the maiden official world title fight at the weight.