Dempsey Jeffries Louis Ali lost to Frazier in his best form IMO(I think the Ali before 21/2 years off was not as strong Vitali Klitschko ( he had a 4 year layoff and I think he primed after the Lewis fight
Agreed, just look at the improvement he made between the first and second fights with Mercado after that.
Jones was 24 years old and had 21 fights, when he beat Hopkins was he prime? .Amateur fights ,especially today are glorified fencing matches.How many amateur fights did Jim Jeffries have? And he had only 22 fights in total. Corbett ,called the Father Of Modern Boxing had a total of 26 fights. Hopkins was 28 years old with 23 fights under his belt for FS !
IMO, Jones's peak was 1994-1998ish, Hopkins's peak was 1997ish-2003, so I believe Jones was closer to his prime than Hopkins was when they fought. Jones fought in the same style against B-Hop that he did in 2003, Hopkins's style by 2001 was completely different from how it had been in 1993. Age is only a number. PS: I should add, I don't actually think Hopkins is a valid answer on this thread though. He was not peak against Jones, but he was not so green that it can be said he had no prime losses. He was competing at world title level, for me that rules him out. I think Monzon is a valid answer because his 3 losses were early career and his unbeaten streak lasted through his whole time as a contender and a champion.
At the risk of contradicting myself...I dont think Hopkins was in his prime when he lost to Roy but I dont consider it a out of prime loss. He was physically as good as you were going to see him..Strong, powerful, fast and athletic but he wasnt the technician or tactician he would become. Though you could certainly see elements of it there.