Team Zone Entry Data and Predicting Standings

I am sure many of you are aware that Corey Sznajder (@ShutdownLine) has been working on tracking zone entries and exits for every game from last season. A week and a half ago Corey was nice enough to send me the data for every team for all the games he had tracked so far (I’d estimate approximately 60% of the season) and the past few days I have been looking…

August 26, 2014

Columbus Blue Jackets and Rush Shots

Before I get into rush shots of individual players I am going to look at some teams. I am starting with the Columbus Blue Jackets which was suggested for me to look at by Jeff Townsend who was interested to see impact the decline of Steve Mason and then the transition to Bobrovsky had. Before we get to that though, let’s first look at the offensive side of things (and if you haven’t…

July 15, 2014

Maple Leaf defensemen and their effect on save percentage

The other day I looked at the effect that Mike Weaver and Bryce Salvador had on their teams save percentage (if you haven’t read it, definitely go give it a read) when they were on the ice versus when they weren’t on the ice. Today I am going to take a look at the Maple Leaf defensemen to see if there are any interesting trends to spot. We’ll start with the new…

July 2, 2014

What is ‘open play’ hockey?

In a series of recent posts at, Tyler Dellow discussed a new concept (to me anyway) that he called ‘open play’ hockey. In a post on “The Theory of the Application of Corsi%” he wrote: I have my own calculation that I do of what I call an open play Corsi%. I wipe out the faceoff effects based on some math that I’ve done as to how long they…

September 21, 2013

Standardizing Advanced Stats Nomenclature

One of the complaints against advanced statistics in hockey is the names of some of the advanced statistics. Sometimes people complain about names like Corsi, Fenwick, PDO, etc. because they don’t have meaningful names. I never really understood it because once you figure it out, which honestly it isn’t that difficult, it isn’t all that difficult. That said, it still seems that some people feel it is a bit of…

July 10, 2013

How are HockeyAnalysis ratings (HARO, HARD, HART) calculated?

Every now and again someone asks me how I calculate HARO, HARD and HART ratings that you can find on and it is at that point I realize that I don’t have an up to date description of how they are calculated so today I endeavor to write one. First, let me define HARO, HARD and HART. HARO – Hockey Analysis Rating Offense HARD – Hockey Analysis Rating Defense HART – Hockey Analysis Rating…

April 11, 2013