High danger impact stats

Bjornar Moxnes

Stem Rødt og Felix Unger Sörum
Oct 16, 2016
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Hey everyone, I've just created a chart for 2016-2017 season high danger impact by defenseman. The top 3 defenseman (subjective) of every team that has played at least 750 minutes 5 on 5 is used. For Anaheim, Carolina, St. Louis, and Nashville I decided to use their top 4. If it's not very easy for you to navigate, please open the image in a new tab to get the full view, and if it's still hard, just tell me what I should change in the comments below.

Which players positions on the chart surprised you the most?

Relative in this case means the impact that the respective defenseman have on their team's high danger chances when they are on the ice. So for example Braun has a strong negative impact on his team's overall high danger chances generation when he's on the ice, but has a strong positive impact on his team's overall high danger chance suppression. For high danger chances against, having a negative number means better as you're allowing that much less chances when you're on the ice than when you're not. For high danger chances for, having a positive number (Obviously) means better for the vice versa reason of high danger chances against.

Relative isn't by the overall situations, it's by when the said player is not on the ice. For example, Pesce's high danger generation when he is on the ice is 11.86 per 60. The amount of high danger chances he allows is 8.41. The amount of high danger chances he suppresses is 3.51 when he's on the ice versus when he's not (Aka a negative 3.51 on the chart, as in this scenario the lower in the number the better), while he generates 0.22 more when he's on the ice than when he's not. Carolina as a whole gives up 10.67 HDCA and produces 11.72 HDCF. Pesce's relative numbers (Well all players really) are not indicated by his team's overall numbers. Relative means when he's on the ice versus when he's not; how much is he impacting high danger chances.
gyjNRuX.png
 
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Bjornar Moxnes

Stem Rødt og Felix Unger Sörum
Oct 16, 2016
11,495
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Troms og Finnmark
Do you mind if I post this on my Facebook page Hockey=Life? It has over 12,000 likes and I think our fans would like to see this.

Absolutely, just make sure if you give credit give it to me or natural stat trick (My info gathered). You don't have to give credit though that is perfectly fine, but if you do don't lie lol.
 

Bjornar Moxnes

Stem Rødt og Felix Unger Sörum
Oct 16, 2016
11,495
3,946
Troms og Finnmark
I like seeing where Barrie and Zadorov ended up. Weird to see Beauchemin as a "juggernaut".

Well it's relative which isn't necessarily the most reliable. But again relativism is what the chart means, not how good the Dman is overall. Keith and Doughty are elite Dman but have a liability in high danger impact on their teams (However for Keith it's only this season, otherwise he has a offensive specialist impact, but Doughty is usually a liability impact because he generates a lot of low danger chances).
 

Bear of Bad News

Your Third or Fourth Favorite HFBoards Admin
Sep 27, 2005
13,491
26,823
"Relative" can mean many things here - can you be specific as to how you're using the term?
 

Bear of Bad News

Your Third or Fourth Favorite HFBoards Admin
Sep 27, 2005
13,491
26,823
"Relative" can mean many things here - can you be specific as to how you're using the term?

It's a completely serious question, by the way (and I read your initial post) - is it "relative" to the overall scoring chances faced by a team, or relative to the overall situation that the player is involved in, or something else? And if it's situation, what situations are being adjusted for?
 
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MadLuke

Registered User
Jan 18, 2011
9,512
5,152
Weber last season is a bit surprising, him both him being relatively bad offensively and good defensively like that (if I'm reading that graph right)

I would have also expected Karlson to have a bit of an higher impact than this, no relative impact defensively, a good one offensively but far from best in the league.

Keith would be the other surprise, a liability that does not bring offense....
 

Bjornar Moxnes

Stem Rødt og Felix Unger Sörum
Oct 16, 2016
11,495
3,946
Troms og Finnmark
Weber last season is a bit surprising, him both him being relatively bad offensively and good defensively like that (if I'm reading that graph right)

I would have also expected Karlson to have a bit of an higher impact than this, no relative impact defensively, a good one offensively but far from best in the league.

Keith would be the other surprise, a liability that does not bring offense....

Yeah Weber has a shutdown value. Karlsson played a much more defensive role last season and thus his relative offense suffered but his relative high danger defensive impact was better than his peers which should about dispel the so called Karlsson is a poor defensive player stigma. Keith usually has a offensive specialist impact on high danger chances, he just had an off year. Doughty however usually always has a liability impact on his team's high danger chances as he generates most of his chances from the low danger area.
 

Bear of Bad News

Your Third or Fourth Favorite HFBoards Admin
Sep 27, 2005
13,491
26,823
Can you describe the adjustments that you're making to get to a "relative" basis?
 

Michael Farkas

Grace Personified
Jun 28, 2006
13,424
7,947
NYC
www.HockeyProspect.com
He is horrendous in most aspects of his game...I made a brief video about it in fact...

When you reward no hockey sense, shoot-from-anywhere losers, you get results that don't jive with reality...on an otherwise pretty strong list (from a coach/scout perspective, like how I watch the game), you can't expect to it to be perfect based on the data that you're working with...it is severely limited, of course...
 

Aladyyn

they praying for the death of a rockstar
Apr 6, 2015
18,112
7,234
Czech Republic
This must be wrong. Everyone keeps saying Ristolainen is a liability, how could they possibly be wrong?
 

oilerbear

Registered User
Jun 2, 2008
3,168
199
Hey everyone, I've just created a chart for 2016-2017 season high danger impact by defenseman. The top 3 defenseman (subjective) of every team that has played at least 750 minutes 5 on 5 is used. For Anaheim, Carolina, St. Louis, and Nashville I decided to use their top 4. If it's not very easy for you to navigate, please open the image in a new tab to get the full view, and if it's still hard, just tell me what I should change in the comments below.

Which players positions on the chart surprised you the most?

Relative in this case means the impact that the respective defenseman have on their team's high danger chances when they are on the ice. So for example Braun has a strong negative impact on his team's overall high danger chances generation when he's on the ice, but has a strong positive impact on his team's overall high danger chance suppression. For high danger chances against, having a negative number means better as you're allowing that much less chances when you're on the ice than when you're not. For high danger chances for, having a positive number (Obviously) means better for the vice versa reason of high danger chances against.

Relative isn't by the overall situations, it's by when the said player is not on the ice. For example, Pesce's high danger generation when he is on the ice is 11.86 per 60. The amount of high danger chances he allows is 8.41. The amount of high danger chances he suppresses is 3.51 when he's on the ice versus when he's not (Aka a negative 3.51 on the chart, as in this scenario the lower in the number the better), while he generates 0.22 more when he's on the ice than when he's not. Carolina as a whole gives up 10.67 HDCA and produces 11.72 HDCF. Pesce's relative numbers (Well all players really) are not indicated by his team's overall numbers. Relative means when he's on the ice versus when he's not; how much is he impacting high danger chances.
gyjNRuX.png

As the creator of high danger theory 10+ years ago.
I spent much time trying to have people get it.
I have been asked to generate 5 books on my specific theories for academic use.
I finally have te free time to Do my ork.

Plus I am tired of lking at people us portions of my theories
and
coming to disgustingly awful analytical conclusions.

Thier is suttle portions to the affected theory that sites like Corsica Hockey and Puck IQ did not get.
One of the theories I developed is Situational means and ranges for Sets of Data.
Corsi; Goals; ... etc.

You have to look at each situation and mean based on Comp Team and ZS.
I finally came to 3 groups of 8
Upper, Lower 1st; 2nd; 3rd; 4th comp and Team
8 std deviations of ZS.
you end up with a data cube 8 high x 8 wide x 8 deep = 512 groups of means and ranges.

An example would be Goal differential:
GF - GA = GD
The variance in mean by the 3 axis situations was +29 to -30 goal dif.



Rob Volman: later created a 2 axis version of my chart.
which greatly scewed results.
He allowed you to look at portions of the cube.
allowing you to make it 1st line comp rather than upper or 1st+ 2nd comp
which gave you a partial reference to mean.
Which end up Statistical lies.

A full usage chart needs to deal with the 3 variables a coach can control.
Team; Comp; Zone start (with and without procession coming off the bench as part of Zone start affect)

So Volman excludes one axis.
A simple test to see if that is a smart move is:
we should be able to hold the 2 displayed variables constant.
work the length axis for the excluded variable.
if its exclusion is to have little affect the Mean and Range for the excluded ariabl should not vary results.

The removal of any of the 3 axis does not pass the smell test.
2 axis usage charts are a lie.

People in the analytics world want to simplify it for the masses.
but exsclusion often leads to Analytic delusion.

Most of my theories was breaking down the defensive aspect of the game.

As the person who created what you are looking at.
Corsi for and Corsi against is a reflection of Fwd and Offensive Dman Success or Failure.
Their is No defensive Measure of the attacking players Starting from procession to Pocession change.

When I looked at trying to capture Elite HD dmen I found that Corsi to GA (90%)
or Fenwick to GA (95%) were the best 2 captures of the 60 worst and Best HD Dmen.

! looked at individual
Groups:
Corsi to Fenwick 43.7%
Fenwick to SA 47.7%
SA to GA 85%
Corsi to Fenwick to SA 45%
Fenwick to Sa to GA (95%)
Corsi to fewick to Sa to GA (90%)

What became clear right away is
1. their are 2 ways to affect Play defensively.
2. you must see what is the hardest situational play a Dman can repeat his performance. ( Belichek way) You do not look at ceilng play.

The 2 ways to affect Defence.
1. HD reduction:
Take a cummulative total of Shot scoring Potential based on x,y Corsi
2. Open Hole shot suppression:
looking at the best Dman that have the lowest % of Corsi be a open hole shot.
What this is really saying is have the highest % of Corsi have 0% chance of going in the net.

We know what Corsi; Blocks and Misses are.

Closed hole shot: is what I call a table hockey goalie shot.
In the game today golaies move side to side just like a table hockey Goalie.
Their is a large % Shots that hit the goalie.
They had 0% chance of going in.
1. Shot into glove before movement ; then the arm swing
2. hits the pads
3. Hits the shoulder
4. Hits the Chest protector
5. hits the blocker
6. Off the helmet.

So an elite Open hole Shot suppression Dman.has a Standard rate
Open hole shots = Corsi - ( blocks + misses + closed hole shots)
that rate is;
Open hole shots/ corsi
You want them to Repeat that level of Perormance for as high a % of EVTOI.
This 2nd measure is how you Define Dmen like Kris Russell.
one of the 2 best in the league.

So sorry Volman's Player usage charts tell you nothing!

Analytic People trying to come up with a More simple number to define player are being Silly.

So remember:
Forwards:
CF x,y to CA x,y establishes the entry to turnover HD affect of forward play.
THe hd aspect of that must be included.

Dmen:
I do not look at Dman offence because all but 5-10 are upper 4th to #14 press box forward even offence.
All that really matters is the Baseline EVGA Mean that a Dpair can establish.,

Cause if you want to be Playoff Wild card competitive.
The forward line has to generate .15 EVGF60 more than the dpairs EVGA60.

If I become a Prof I will give a 0 to anyone who
1. uses a 2 axis usage chart,
2. tries to reduce play to a single variable.
3. Makes any portion of offensive play a measure of Defence.
a. HD corsi rlease
b. open hole Shot suppression
c. Repeatablity of Performance. (belicjek way)

Realative high danger chances for gets you a Zero!

Ps. my HD theory came from the idetic memories of a 3-6 year old watching Flin flon Bombers of Clarke, Leach, Stoughton; Hart; Morrison; Carr; Baird; Arnason; Howatt, poonch, Mcilargey, R.Wlson

Violence about the space in front of the net.
 

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