In a sense, no, as the nine ball ghost cannot be evaluated with respect to the break, defense, kicking, and general strategy.
In a sense, yes, because one can guess the Fargo rating required to play the ghost even. Still, it's a very inexact science, as two players may have the same Fargo but one pockets better while the other is much better as a tactician. The better pocketer will do better against the ghost, even if these players are dead even when they play a match against each other.
These points aside, I'd guess that, on average. one needs to play to about a Fargo of 640 before they are about even money to beat the nine ball ghost.