I was thinking about Kovalchuk and his terrible +/- over his career and then it dawned on me.
Now, I know that +/- isn't a great statistic, but is there a way of combining +/- and dividing it by Time On Ice? I mean if Kovalchuk plays 22+ mins a game, and is -2 and Boulton plays 4 minutes and is -1 that surely means that Boulton is worse on the ice when prorated, even though he was only on for one goal against.
So, does this kind of statistic exist? Obviously, the larger the sample, the more realistic the answer you will get. However, perhaps it could be argued that it may prove nothing; but I'm just curious.