Player Discussion: Connor Hellebuyck Vezina Finalist

Aavco Cup

"I can make you cry in this room"
Sep 5, 2013
37,630
10,440


IMG_0968.jpg

IMG_0970.jpg
 
Last edited:

Puckatron 3000

Glitchy Prototype
Feb 4, 2014
6,357
4,168
Offensive Zone
Hopefully this isn't too off-topic, but I don't know where else it belongs.

In reading up on the Vezina finalists, I noticed a definite shift in the fancy stats analysis of goaltenders. A few years ago, I got in many arguments that raw sv% was an unfair measure of a goalie's performance, since it didn't account for the team's defensive play. At the time, fancy stats guys "in the know" discredited the effect the team in front of a goaltender had on the number of saves. Basically stating that "it all evened out". And that sv% was a pure indicator of a goaltender's ability.

Here's an article discussing the fancy stats behind the Vezina finalists.
Earning the Vezina 2018, Part 2: Advanced stats and the rightful winner - InGoal Magazine

It says that, while Hellebuyck has been great, there are other goaltenders with lower sv% that have been even better. It factors in the kinds of shots the goalie faces.

This article states what many of us "eye test" folks argued all along, quote:

Raw save percentage treats every shot as though it were equally difficult to stop. Saving a muffin from the red line or a perfectly-executed 2-on-0 are worth exactly the same amount. This would be fine if the total difficulty of shots faced averaged out for all goalies over the course of a season, but this doesn’t happen: goalies who play on worse defensive teams face more difficult shots overall. This means that even if two goalies sport an identical league-average 91.2 save percentage, one might have significantly outplayed the other in order to earn it.​

There now appears to be a term for this team-dependent goalie measure, called delta save percentage.

I'm a firm believer in fancy stats. But I also consider it a young art, and I think this is a case where the fancy stats have finally caught up with what eye-test folks saw all along.

Thoughts?
 
  • Like
Reactions: Luc Labelle

Saidin

Registered User
Mar 18, 2015
1,251
1,043
Does that look photo shopped to you peeps? I don't see the serial killer eyes I'm used to in Helly.
 

FonRiesen

Registered User
Sep 28, 2017
3,011
6,497
Vancouver Island
Hopefully this isn't too off-topic, but I don't know where else it belongs.

In reading up on the Vezina finalists, I noticed a definite shift in the fancy stats analysis of goaltenders. A few years ago, I got in many arguments that raw sv% was an unfair measure of a goalie's performance, since it didn't account for the team's defensive play. At the time, fancy stats guys "in the know" discredited the effect the team in front of a goaltender had on the number of saves. Basically stating that "it all evened out". And that sv% was a pure indicator of a goaltender's ability.

Here's an article discussing the fancy stats behind the Vezina finalists.
Earning the Vezina 2018, Part 2: Advanced stats and the rightful winner - InGoal Magazine

It says that, while Hellebuyck has been great, there are other goaltenders with lower sv% that have been even better. It factors in the kinds of shots the goalie faces.

This article states what many of us "eye test" folks argued all along, quote:

Raw save percentage treats every shot as though it were equally difficult to stop. Saving a muffin from the red line or a perfectly-executed 2-on-0 are worth exactly the same amount. This would be fine if the total difficulty of shots faced averaged out for all goalies over the course of a season, but this doesn’t happen: goalies who play on worse defensive teams face more difficult shots overall. This means that even if two goalies sport an identical league-average 91.2 save percentage, one might have significantly outplayed the other in order to earn it.​

There now appears to be a term for this team-dependent goalie measure, called delta save percentage.

I'm a firm believer in fancy stats. But I also consider it a young art, and I think this is a case where the fancy stats have finally caught up with what eye-test folks saw all along.

Thoughts?
I think it ignores a goalie's rebound control. (and I asked the author that question, I'm interested in his response). It looks like delta is assuming that goalie positioning, rebound control, and puck handling is all the same from goalie to goalie (at least from his description). I mean, I watched Pavelec for years... Helle makes it way easier on his D.
 

csk

Registered User
Nov 5, 2015
2,682
269
Winnipeg, MB
Hopefully this isn't too off-topic, but I don't know where else it belongs.

In reading up on the Vezina finalists, I noticed a definite shift in the fancy stats analysis of goaltenders. A few years ago, I got in many arguments that raw sv% was an unfair measure of a goalie's performance, since it didn't account for the team's defensive play. At the time, fancy stats guys "in the know" discredited the effect the team in front of a goaltender had on the number of saves. Basically stating that "it all evened out". And that sv% was a pure indicator of a goaltender's ability.

Here's an article discussing the fancy stats behind the Vezina finalists.
Earning the Vezina 2018, Part 2: Advanced stats and the rightful winner - InGoal Magazine

It says that, while Hellebuyck has been great, there are other goaltenders with lower sv% that have been even better. It factors in the kinds of shots the goalie faces.

This article states what many of us "eye test" folks argued all along, quote:

Raw save percentage treats every shot as though it were equally difficult to stop. Saving a muffin from the red line or a perfectly-executed 2-on-0 are worth exactly the same amount. This would be fine if the total difficulty of shots faced averaged out for all goalies over the course of a season, but this doesn’t happen: goalies who play on worse defensive teams face more difficult shots overall. This means that even if two goalies sport an identical league-average 91.2 save percentage, one might have significantly outplayed the other in order to earn it.​

There now appears to be a term for this team-dependent goalie measure, called delta save percentage.

I'm a firm believer in fancy stats. But I also consider it a young art, and I think this is a case where the fancy stats have finally caught up with what eye-test folks saw all along.

Thoughts?

Thing is, "eye test folks" don't all agree. So while there may have been some that saw it all along, most did not. So including even the rudimentary stats when formulating your opinion will usually improve it.
 

Puckatron 3000

Glitchy Prototype
Feb 4, 2014
6,357
4,168
Offensive Zone
I think it ignores a goalie's rebound control. (and I asked the author that question, I'm interested in his response). It looks like delta is assuming that goalie positioning, rebound control, and puck handling is all the same from goalie to goalie (at least from his description). I mean, I watched Pavelec for years... Helle makes it way easier on his D.

That's a great point. Poor rebound control would increase the high-danger chances, at no fault of the team in front of the goalie. Maybe the model will evolve to track and measure rebounds as well. But I agree that, until it does, it's a short-coming of the current methodology.
 

Puckatron 3000

Glitchy Prototype
Feb 4, 2014
6,357
4,168
Offensive Zone
Thing is, "eye test folks" don't all agree. So while there may have been some that saw it all along, most did not. So including even the rudimentary stats when formulating your opinion will usually improve it.

100% agree that stats are helpful.

I don't agree that "most did not" see it all along. It is pretty conventional wisdom that the team's D greatly impacts a goalie's ability to stop pucks. Goalies and coaches talk about it all the time. It's almost always the first thing out of Helle's mouth when he has a good game - the team in front of him allowed him to stop the pucks.

Then the analytics came along and, for a while, disagreed. In most cases, the analytics are right. But in this case, it seems the conventional wisdom / eye-test were correct. That being more rare, I thought it was an interesting thing to point out.
 

Neilstrong218

Registered User
Mar 29, 2018
63
11
Congrats to you sir, the only one who understood!
http://:eek::eek::eek::eek::eek::eek::eek::eek::eek::eek::eek::eek:/buluhidung/46/pic.png
http://:eek::eek::eek::eek::eek::eek::eek::eek::eek::eek::eek::eek:/buluhidung/67/pic.png
 

Puckatron 3000

Glitchy Prototype
Feb 4, 2014
6,357
4,168
Offensive Zone
Neilstrong218, let me know if you need some help with that IMG tag. Or just generally on how to be a pleasant human being. I know the internet is hard. ;)
 

PhilJets

Winnipeg is Good
Jun 24, 2012
10,402
8,130
Somewhere nice
Whats the Jets overall goalie record and team performance with or without Helly.

Helly been so consistant. His 3rd period shutdown is what really is impressive. He closes the door and doesn't open it.
Maybe 2 games this year he could have had a better 3rd period.

Good for Helly

Rinne is the front runner but it will be a closer race with him and Helly.

Vasilevsky was front runner in the first half
Rinne was the fron runner 2nd half
But Helly has been top 3 all year.
 
  • Like
Reactions: Luc Labelle

FonRiesen

Registered User
Sep 28, 2017
3,011
6,497
Vancouver Island
That's a great point. Poor rebound control would increase the high-danger chances, at no fault of the team in front of the goalie. Maybe the model will evolve to track and measure rebounds as well. But I agree that, until it does, it's a short-coming of the current methodology.
Apparently the author can't handle questions. I didn't criticize, just asked how rebound control played into his article, but the comment didn't make it past moderation. Weird. Other analytical websites don't mind discussion.
 

Ad

Upcoming events

Ad

Ad