Statistical analysis of star defenseman in NHL
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11-18-2012, 11:58 AM
Join Date: Sep 2008
Originally Posted by
I'm a fan of anyone who uses hockeyanalysis, but mentioning goals.. Well, they're sort of irrelevant.
Goals are obviously what win or lose you hockey games, but they're so unpredictable. Perry directed a pretty similar number of pucks on net this year and last (13 shots less in 2 less games) and scored 13 goals less. Kuba had an almost identical shot rate for/against in his last two seasons in Ottawa, yet went from -26 to +26.
Over a large enough sample size, those things even out, but one season isn't large enough. That's why you have players who have years like Getzlaf - who looks awful statistically but really just went through two ends of the on-ice shooting percentage spectrum..
Shot rates are much more repeatable, thus much more accurate and a much better predicter of future success. Talking about goals will just lead to people thinking "so he creates higher quality chances", which might happen... But if it does, the effect is so small that it gets buried in statistical noise..
Edit: more detailed analysis of Suter and Weber:
They only played about 3 games without each other. Not nearly enough of a sample size to say for certain how they influence the game apart from their partner.. As the article says, any team in the league can look amazing or awful over a 3 game stretch.
Agreed on the goals topic, Corsi is a better representation for this type of analysis.
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