It would be interesting to try and debate what results would have been different if the 15 rounder had been scheduled for 12, and vice versa.

I think Hagler may have stopped Leonard if it had been a fifteen rounder. Ironically, Hearns would have out pointed Sugar Ray had they fought a twelve rounder?

norton may well have out pointed Holmes too.

One can always argue that a fighter would have paced themselves differently, but it would be a fun argument.