by PuckStopsHere on 08/08/09 at 12:24 PM ET
In this summer’s look at sabermetrics and hockey, I have been looking at the Corsi Number. The Corsi Number is the difference in the number of shots directed at the net (shots on goal, blocked shots and missed shots) taken by a team while a given player is on the ice and those taken by his opponents in five on five situations. I recently gave the top 20 adjusted Corsi rates. This is a list of players who excelled in the roles that they played last season. Today, I am listing the worst 20 adjusted Corsi rates. The adjustment method involves calculating a player’s Corsi rate while he is on and off the ice and subtracting them to get the adjusted rate attributed to a given player. This is similar to the adjustment that behind the net does with on/off ice adjusted +/- ratings.
Here are the 20 worst adjusted Corsi rates from 2008/09 among players with 50 or more games played:
This list appears over-represented by shut down forwards who struggled last season (such as Kris Draper and John Madden). This is in contrast to the counting stat adjustment which is over-populated by shut down defensemen. Neither push puck possession on their teams, but since defencemen tend to get more ice time they tend to lead in a counting stat format, while the forwards have worse overall rates. Nine players appear on both worst Corsi lists after adjustment. They are Kris Draper, Rob Niedermayer, John Madden, Jay Pandolfo, Boyd Gordon, Colton Orr, Lauri Korpikoski, Kurt Sauer, Mike Commodore and Tim Jackman. Three players on this adjustment list are not eligible for the counting stat adjustment since it requires players to play on only one team during the season and they were traded (Travis Moen, Sami Pahlsson and Niclas Havelid). The other players who appear on this list are players who had limited roles on their respective teams (to not get enough ice time to appear on the counting stat list) and failed. Ryan Johnson of the Vancouver Canucks leads this group. He probably played himself out of the NHL last season.
This list is by no means a list of the worst twenty players in the NHL. Many of the shutdown forwards, though they did not have good seasons, are made to look worse because of high calibre opposition. Any player appearing on this list who did not play against top opposition last season did not belong in the NHL. Many of the players in that group will soon find themselves without NHL jobs.
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