As to the original post, I'd say each underdog has about a snowball's chance in hell of winning. As to the second list, Art Frias-Harry Greb made me laugh out loud. I'm still laughing as I'm writing this. Cooney-Zapata and Tyson-Chang are good too. But Frias-Greb is the all time classic.
I guess the lesser of all the mismatches in the poll is Ali vs Cooper, since Cooper could potentially hurt Ali if he caught him right. The rest of those matchups are brutal beatdowns.
I am not sure that Lopez would beat Fury that badly. Fury's size should at least win him a couple rounds.
Hearns vs Alexander This one is obvious, there ain't no way Hearns is keeping him off him, Alexander shows a new side to his game and roughs him up, bullies him and gets inside and beats him up for a few rounds en-route to knocking him out Alexander would be too big too strong
Cooper solely because he was a big puncher and a heavyweight. If they fought 100 times he might bomb him out once
Disagree. Alexander has no power. He couldn't knock out Amir Khan. To beat Hearns, you've got to have power & take the fight to him - something Alexander isn't known for & has never really done. But you did say 100-1 so there's that.