Blog Archives

About that Flyers challenge last night…

This post originally appeared on Hockey Graphs. Last night Dave Hakstol and the Flyers were the first team to get burned by the NHL’s new offside challenge rule. With a one-goal lead over Nashville and just 2:41 left in the

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Posted in Theoretical, Uncategorized

How certain do you need to be on an offside challenge?

Offside challenges are, to say the least, a controversial topic. While many have advocated for the benefit of getting the call right even at the cost of a delay in the game, it’s almost indisputable that the introduction of the

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Posted in Theoretical

Should teams play with 4 forwards when they’re down late?

This post originally appeared on Hockey Graphs. Tl;dr There is some evidence to suggest that teams should play with 4 forwards when trailing late in a game. The timing of when to switch to 4 forwards is dependent on how

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Posted in Theoretical

Does aggressive play on the penalty kill pay off?

This post originally appeared on Hockey Graphs. Late last week, Arik Parnass pointed out a particular peculiarity about the Ottawa Senators’ penalty killing so far this year. For those that missed segment today on 690, #Sens PK is super interesting.

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Posted in Special Teams, Theoretical

A New Way To Measure Deployment – Expected Faceoff Goal Differential

This article originally appeared on Hockey Graphs. Zone starts are not that great of a metric. Although certain players do tend to be put out almost exclusively for offensive or defensive purposes, the reality is that for most players’ zone starts have

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Posted in Deployment, Theoretical

Predicting Save Percentage: Dangers Zones and Shot Volumes

A few days ago, Conor Tompkins of Null Hypothesis Hockey tweeted out an interesting set of graphs showing the correlation between a goalie’s save percentage in each of the War-On-Ice danger zones and their overall success rate. Conor found that

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Posted in Goaltending, Theoretical

Improving Corsi Rel: Adjusting for Team Talent

Corsi Rel is a stat that, in theory at least, is meant to address the fact that a good player on a poor team is still likely to post a bad CF%. We don’t want to punish superstars who are

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Posted in Theoretical