Quote:
Originally Posted by saillias
I don't understand why PDO exists. Possession I get, shot attempts I get, those are quantifiable things. But PDO seems to me, someone got stoned and thought it would be brilliant to add a team's save percentage and shooting percentage.
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It exists because it combines two meaningful measures (shooting and save percentage) into an easy to understand benchmark. The league average PDO is 100 by definition (since every non-blocked shot is either a goal or is saved), so numbers above 100 indicate that you have better than average shooting and/or saving and vice versa.
It seems like a useful indicator, but then we're told that saves and goals are both based on luck and everything reverts to the mean (100) so I guess it ends up being kinda meaningless.