How different would it have been....

[Master]

Hearns would have won and modified his style and go on to beat Hagler ou pointing him.
Frazier had come out for round 15 and so would have Ali and boxed his way to a victory.
Hagler v Leonard was a 15 round fight and may have won a split decision.
Jones Jr. had never gone to heavyweight may have beaten Tarver but may have still got KOed by Johnson.
Ali had joined the U.S. Military and not had a layoff. He would have dominated and there would be no Fraizer trilogy.


What if Rocky Marciano fight was only 12 rounds against Jersey Joe Walcott?