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08-21-2014, 11:09 AM
Yay hockey!
ChibiPooky's Avatar
Join Date: May 2011
Location: Fairfax, VA
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Originally Posted by Flanagan View Post
Is this thread closed? I hope not.

Either way I'm hoping someone can better explain how relative plus/minus works. According to this site, it is calculated by:

(plus/minus of when the player is on the ice / [plus/minus when the player is on the ice + plus/minus when the player is off it])

First of all, this doesn't seem correct. Even if it is, it's a terrible way of expressing it. The denominator in that equation, [plus/minus when the player is on the ice + plus/minus when the player is off it], isn't that just equal to the team's goal differential? Well discounting powerplay goals I guess. And what if it's zero (which should be the average value)? Then you simply can't calculate relative +/- any more?

And lastly it doesn't seem to account for the sign of the +/-. Say a player's team rating was +2, and he was a +10. Simple enough, his rel. rating is 5.0 (I think).
But what if your team is a -5, and you're +3. Same difference, but suddenly you're relative rating is -0.6. Makes no sense.

Just using the difference instead of quotient seems to make more sense. Someone should straighten this out for me
Relative +/- uses the worst boxcar statistic in hockey three times and no other statistic at all. What were you expecting?

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