by PuckStopsHere on 07/09/12 at 06:10 PM ET
One way to rank players by Corsi (shots attempted by their team minus those of the opponents) is to do a rate calculation. This is done on the website behind the net. This method compares the team’s Corsi when a player is on the ice to when the player is not on the ice. They are compared as a rate (per minute basis). This gives different results than raw Corsi comparisons because it is a fundamentally different calculation. The biggest problem with rate calculations is it is harder to include the context of how the player plays. A player who plays an offensive role with little defensive contribution will seem very good in this method and a player who plays a tough defensive role will seem poorer in this method.
Here are the top 20 players in the NHL by Corsi rate in 2011/12:
This list is limited to players who played 50 or more games in 2011/12. The vast majority of these players played offensive roles on their teams. For example the leader Daniel Sedin led the league in offensive zone starts in 2011/12. He is also a good player but without his offensive usage I doubt he would rank so high.
Another problem with this list is it is hard to differentiate between linemates who frequently play together. For example both Sedin brothers and Alexandre Burrows all rank highly on this list as they are linemates.
It is notable that Patrice Bergeron ranks second on this list despite playing a strong defensive role in Boston and winning the Selke trophy. His frequent linemates in Brad Marchand and Tyler Seguin also rank highly although they do not play as tough a role as he does.
This list identifies players who did well in terms of puck possession and factors out ice time - which allows it to better find underrated players who do not play regularly. There is no attempt to explain the context of their puck possession. Was it their offensive role or linemates who drove the puck possession? It is not easy to answer that question. Nevertheless it is correct to conclude that any player on this list succeeded in the role he played in 2011/12.
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