I was fairly sure there had been a similar thread on this, but a search turned up no matches. So, I'll start by giving out a name of a fighter, then the next person should provide the period of time he or she thinks that boxer was at his very best. One thing: try to be stringent on your assessment; any perceived slippage, no matter how minuscule, should be not be included here. Let's get the ball rolling with Harada!
I'll let someone else chime in on Moore. A fight-to-fight stretch is what we're going for. Be as specific as possible. Ex. Hagler: Sibson-Hearns
I think Moore's extensive career as a world class fighter went up a notch after beating Leonard Morrow in their 1949rematch all the way to the 1956 yolande pompey fight. From the point of the Morrow rematch he was on a real mission to get revenge over many former foes cleaning out one generation of fighters and got half way through the next. sibson- hearns is a good call for Hagler.:good