you are trying to change the facts and the dates to say that rocky would have been old in the 70s then according to you he might not face foreman or frazier . ok if rocky were born in 1942 he would had been 24 in 1966, his pro debut, foreman“s pro debut was in 1968, so rocky would lose anyway, against foreman,frazier and ali. in 1976 he would have been 34 just. he might face foreman and frazier in 1970-73 perfectly.obviously if you want he fight 10 times and he is retired , then would have been undefeated.
:huh -If Rocky turned pro in 1960 as your original timeline would suggest than no, I don't think he would face Frazier or Foreman. He would be retired by 68, maybe 66 if he's drafted. -If Rocky turned pro in 1966, than yes, there is a possibility he could face Frazier or Foreman as I already posted. I wouldn't count the fact they were active as guaranteed losses however and proof he wouldn't go undefeated, depends on the timing and other variables we can't possibly know for sure. Maricano wasn't active enough to face every top contender in the 50s and I doubt he would in the 60s and 70s. Due to his status as an outdoor stadium attraction, frequent injuries, and extensive training camps, he barely fought twice a year during his time at the top. -Really, it looks like you just randomly matched up Marciano against every Ali opponent you could think of...and that just isn't going to happen. Your comparing an active 20+ year career to a guy who barely fought 8.