I’m sure many of you are familiar with corsi numbers but if you aren’t here’s a brief summary; It works in the same way that the plus/minus system does only it uses shots instead of goals. For instance, if John Carlson is on the ice while 14 shots directed at the opponent’s net and 12 were directed at his own, he would have a corsi rating of 2. However, one problem with corsi rating is that it doesn’t bring context into the system. Players who take a lot of defensive zone draws are going to have low corsi ratings because well, they spend a lot of time in their own zone. Manny Malhotra having 75% of his starts coming in the defensive zone being a good example of this. This is where balanced corsi is nice.The people at Broad Street Hockey looked at this for the Flyers and provided data for every player who has played 3/4 of their games in the last four seasons. What they did to figure out the balanced corsi numbers was sort each player by their zone starts, compare the average corsi numbers of the nearest 100 players and figure out an "expected corsi rating" out of it. They would then compare it with their actual corsi rating to get a balanced number. Malhotra’s balanced corsi rating ended up being around 1.65. They also looked at relative corsi ratings to show how much a player improved his team when he was on the ice, which works if the player is on a mediocre/bad team. Basically it takes his corsi on ice and the team’s corsi while he’s off the ice and gives him credit for the difference.
Broad Street Hockey was nice enough to provide everyone with all of the balanced and relative corsi numbers for every player so I decided to look at them for the Caps this year and through the years. This post was made a few weeks ago so I did some updating for our corsi numbers this season.
|NAME||OZ%||Balanced Corsi||Balanced Corsi Rel|
|Marcus Johansson|| 59.2
The impressions I made from looking at/studying the table:
Let's see how these numbers compare with how they've performed the last four seasons. I've also included a few more players who were hurt or didn't see a lot of playing time this year:
|NAME||Average of Balanced Corsi||NAME||Average of Balanced Corsi Rel|
||Alexander Ovechkin|| 10.64
||Marco Sturm|| 6.18
||Matt Bradley|| -7.38
What can we conclude with all of this? First off, I will say that it isn't the "new defining stat" but it's an interesting way to look at how a certain player performs and how much he helps the team. It also provides context in terms zone starts, which I think is very helpful. There's a few things that I think are debatable, though. If you want to look at the raw data, head on over to Broad Street Hockey and check out the post that I linked earlier. I had to update some of the data to figure out this year's numbers but that is fairly easy to do.
Special thanks to Behind The Net and Broad Street Hockey for the data and idea for the post!
If this FanPost is written by someone other than one of the blog's editors, the opinions expressed in it do not necessarily reflect those of this blog or SB Nation.