I was going to say the same thing, if your going to use decimals, just use a one to 10 scale, nice clean integers, more intuitive. I agree with Jake, just average at world level. I'd say 5 out of 10.
btw - i switched to HBO immediately after the fight was over... did they interview Mayorga after the fight? What happened did he break his hand? Did Cotto punch his hand on the follow thru of that lefft hook?
' Mayorga said it was his thumb that was hurt...but all the replays from the final exchange don't show any contact between his left hand and any part of Cotto's body/fist....