...the quality of the opponent at the time of the fight, and the quality of the performance (based on your metrics). So, for example, Ali might start out as... 1. Foreman, 10 quality opponent, 10 masterclass performance 2. Sonny Liston, 9 quality opponent, 10 masterclass 3. Joe Frazier 2, 7 quality opponent (past his best), 8 quality performance etc. If you don't think there are 10 notable wins, just put "vacant" for the balance. Do any heavyweight champs you like. You might do your top three, but do any you like and as many as you like. Thanks in advance.