Expected Goals

Here is the place to talk about all things city and football!

Expected Goals

Postby Wonderwall » Sat Nov 18, 2017 10:33 pm

Wtf is that stat all about? Don't understand it? Can anyone enlighten me?
User avatar
Wonderwall
Colin Bell's Football Brain
 
Posts: 28908
Joined: Wed Dec 14, 2005 2:58 pm
Location: Sale
Supporter of: Gods own team

Re: Expected Goals

Postby nottsblue » Sat Nov 18, 2017 10:51 pm

Wonderwall wrote:Wtf is that stat all about? Don't understand it? Can anyone enlighten me?

We have loads of them.

Other teams not so much.

But seriously, I think it's what's deemed a really good chance. For example KDBs goal today was probably a .25 expected goal. Jesus' goal was probably a 1.0. A bit of a silly statistic IMO.
nottsblue
Colin Bell's Football Brain
 
Posts: 29756
Joined: Sat Oct 05, 2013 5:17 pm
Location: Nottingham
Supporter of: manchester city
My favourite player is: niall Quinn & Kun

Re: Expected Goals

Postby Foreverinbluedreams » Sat Nov 18, 2017 11:03 pm

I saw a discussion on this after the Arsenal game in which it was stated that the chance we had when we broke 2 on 1 with Sterling and Sane wasn't covered by this expected goal stat because no shot had been taken. I certainly expected a goal in that instance.

If that is correct then it would also suggest an air kick in front of an open goal wouldn't fall in to 'expected goals'.

To conclude, I call bollox on it m'lud.
Foreverinbluedreams
Denis Law's Backheel
 
Posts: 9224
Joined: Tue Apr 05, 2011 8:34 pm
Supporter of: Euthanasia

Re: Expected Goals

Postby Chinners » Sat Nov 18, 2017 11:03 pm

nottsblue wrote:
Wonderwall wrote:Wtf is that stat all about? Don't understand it? Can anyone enlighten me?

We have loads of them.

Other teams not so much.

But seriously, I think it's what's deemed a really good chance. For example KDBs goal today was probably a .25 expected goal. Jesus' goal was probably a 1.0. A bit of a silly statistic IMO.


Thanks for enlightening me. I thought it was 'At their current rate Manchester City are expected to score about 133 goals this season in the Premiership'
Image
User avatar
Chinners
Donated to the site
Donated to the site
Kaptain Kompany's Komposure
 
Posts: 14248
Joined: Wed Apr 04, 2007 12:52 pm
Location: Hampton Court Palace
Supporter of: B*ll*x
My favourite player is: Kun Tueart

Re: Expected Goals

Postby Wonderwall » Sat Nov 18, 2017 11:09 pm

Foreverinbluedreams wrote:I saw a discussion on this after the Arsenal game in which it was stated that the chance we had when we broke 2 on 1 with Sterling and Sane wasn't covered by this expected goal stat because no shot had been taken. I certainly expected a goal in that instance.

If that is correct then it would also suggest an air kick in front of an open goal wouldn't fall in to 'expected goals'.

To conclude, I call bollox on it m'lud.


Thanks for this. I have no idea who came up with this and thought it was a good idea? It seems total and utter bollox!!
User avatar
Wonderwall
Colin Bell's Football Brain
 
Posts: 28908
Joined: Wed Dec 14, 2005 2:58 pm
Location: Sale
Supporter of: Gods own team

Re: Expected Goals

Postby Chinners » Sat Nov 18, 2017 11:11 pm

hmm I feel a new feature coming on ....
Image
User avatar
Chinners
Donated to the site
Donated to the site
Kaptain Kompany's Komposure
 
Posts: 14248
Joined: Wed Apr 04, 2007 12:52 pm
Location: Hampton Court Palace
Supporter of: B*ll*x
My favourite player is: Kun Tueart

Re: Expected Goals

Postby Saul Goodman » Sat Nov 18, 2017 11:37 pm

Today’s xG:

User avatar
Saul Goodman
Joe Hart's 29 Clean Sheets
 
Posts: 5412
Joined: Tue May 14, 2013 5:18 am
Location: Toronto
Supporter of: Manchester City
My favourite player is: Bernardo Silva

Re: Expected Goals

Postby Dwaring » Sun Nov 19, 2017 3:35 am

They have been using xG in the states for a couple years. It’s just another stat to quantify a match similar to looking at possession and shots after a match. I don’t care too much for the total numbers but the graphics like Saul showed above give a good representation of how the match went. The one omission is opportunities that didn’t result in a shot.
Dwaring
Richard Edghill Whipping Boy
 
Posts: 499
Joined: Wed Nov 28, 2012 8:28 pm
Supporter of: Manchester city
My favourite player is: Yaya toure

Re: Expected Goals

Postby Wonderwall » Sun Nov 19, 2017 7:39 am

Dwaring wrote:They have been using xG in the states for a couple years. It’s just another stat to quantify a match similar to looking at possession and shots after a match. I don’t care too much for the total numbers but the graphics like Saul showed above give a good representation of how the match went. The one omission is opportunities that didn’t result in a shot.


I still.dont get it. I saw Everton and palace both had less than 2 xg but the game ended 2-2? I must be getting old as this is just nonsense in my head
User avatar
Wonderwall
Colin Bell's Football Brain
 
Posts: 28908
Joined: Wed Dec 14, 2005 2:58 pm
Location: Sale
Supporter of: Gods own team

Re: Expected Goals

Postby Justified logic » Sun Nov 19, 2017 10:20 am

I think it is a matter of how well, or badly, teams take their chances. The xG score rates how easy the chance is, the players can cock up easy chances or score unbelievable goals. That said, it is a useless stat for saying how a game should have gone.
Justified logic
Rosler's Grandad Bombed The Swamp
 
Posts: 3559
Joined: Tue Jul 12, 2016 6:40 pm
Location: Playing in the hole
Supporter of: Manchester City
My favourite player is: David Silva

Re: Expected Goals

Postby Peter Doherty (AGAIG) » Sun Nov 19, 2017 10:30 am

What a load of fucking bollox.
Peter Doherty (AGAIG)
Donated to the site
Donated to the site
Shaun Goater's 103 Goals
 
Posts: 7170
Joined: Tue Mar 22, 2011 1:15 am
Location: Manchester
Supporter of: MCFC
My favourite player is: Johan Cruyff

Re: Expected Goals

Postby dazby » Sun Nov 19, 2017 11:02 am

i think it's used as a counterbalance for teams that have a lot of possession but do naff all with it. xg shows how penetrating they are with their attacks.
Attack the argument of the person, not the person of the argument- except Carl.
User avatar
dazby
Joe Mercer's OBE
 
Posts: 19305
Joined: Thu Dec 15, 2005 4:02 am
Location: Brisbane Australia
Supporter of: Manchester City
My favourite player is: Ed

Re: Expected Goals

Postby craigmcfc » Mon Nov 20, 2017 5:24 pm

Wonderwall wrote:
Dwaring wrote:They have been using xG in the states for a couple years. It’s just another stat to quantify a match similar to looking at possession and shots after a match. I don’t care too much for the total numbers but the graphics like Saul showed above give a good representation of how the match went. The one omission is opportunities that didn’t result in a shot.


I still.dont get it. I saw Everton and palace both had less than 2 xg but the game ended 2-2? I must be getting old as this is just nonsense in my head


Me and you both pal.
craigmcfc
Paul Power's Tash
 
Posts: 10838
Joined: Mon Jun 02, 2008 9:39 am
Location: Halifax
Supporter of: MCFC
My favourite player is: Sergio Aguero

Re: Expected Goals

Postby brite blu sky » Mon Nov 20, 2017 6:04 pm

Dazby is about right. Someone came up with it as a way of assessing how many chances end up as goals.
I rekon it is just a fad and will sink to the background noise after a while.
Probs one of the betting comps came up with it or someone then selling the data to the clubs.

It can be used at micro - player/game level and macro - team/season level

like City get av. 12 chances / game and as the xG is good cos we are clinical then we are likely to win a game or the league.
Can be used to show how clinical each player is also obviously.


this is a decent enough read... as it is about us basically
http://www.telegraph.co.uk/football/201 ... er-league/
[center]Image[/center]
User avatar
brite blu sky
Dickov's Injury Time Equaliser
 
Posts: 4995
Joined: Sun Jan 13, 2008 7:23 pm
Location: Barcelona

Re: Expected Goals

Postby iwasthere2012 » Tue Nov 21, 2017 11:51 pm

I expected goals tonight.

One will do I suppose.
Thanks Raheem.
Image
iwasthere2012
Denis Law's Backheel
 
Posts: 9845
Joined: Mon Oct 20, 2014 4:14 pm
Location: Dublin
Supporter of: Manchester City
My favourite player is: David Silva (was PabZab)

Re: Expected Goals

Postby PrezIke » Wed Nov 22, 2017 4:03 am

brite blu sky wrote:Dazby is about right. Someone came up with it as a way of assessing how many chances end up as goals.
I rekon it is just a fad and will sink to the background noise after a while.
Probs one of the betting comps came up with it or someone then selling the data to the clubs.

It can be used at micro - player/game level and macro - team/season level

like City get av. 12 chances / game and as the xG is good cos we are clinical then we are likely to win a game or the league.
Can be used to show how clinical each player is also obviously.


this is a decent enough read... as it is about us basically
http://www.telegraph.co.uk/football/201 ... er-league/


Almost everything in this article is holding very true thus far.

I think this part does a good job of explaining its value to those who doubt it:

Why is xG useful?

xG's value is that it gives an indication of whether a team's results are based on sustainable factors like the consistent creation or denial of chances, or whether it is down to less sustainable factors like freakishly high chance conversion or sensational goalkeeping.

It also gives a far more reliable picture as to us the results of individual matches reflected the pattern of play. Take Germany's 7-1 win against Brazil in the 2014 World Cup for instance, in which Brazil actually had more shots and possession, but were way down on xG compared to their opponents.

xG can be thought of as effectively evaluating "chances", whereas "shots on goal" does not discriminate between a 35-yard sighter and a missed open goal from close range.

By analysing every shot from last season and the season before, the STATS team have been able to identify a number of patterns, which we can use to inform how this season might pan out.


Simply put, I am understanding it as something to help us better judge a team's performance, especially compared to stats more commonly utilised (i.e. goals/shots/possession).

Also, perhaps to show how basic game stats could mislead us about performances.
Image
User avatar
PrezIke
Shaun Goater's 103 Goals
 
Posts: 7445
Joined: Fri Jul 23, 2010 12:18 pm
Location: 'N Why See
Supporter of: City
My favourite player is: KDBeezy

Re: Expected Goals

Postby Nickyboy » Wed Nov 22, 2017 6:23 am

There was a decent article on BBC about it at the very start of the season as MOTD have started using it.

Suppose it helps show how good a strikers form is. If there actual goals is under the expected goals consistently it means they're always missing sitters.
User avatar
Nickyboy
De Jong's Tackle
 
Posts: 1522
Joined: Sun May 25, 2008 12:21 pm
Location: Ramsbottom
Supporter of: MCFC
My favourite player is: Silva

Re: Expected Goals

Postby LookMumImOnMCF.net » Wed Nov 22, 2017 11:15 am

Think this might be the article: http://www.bbc.co.uk/sport/football/40699431

I quite like that it tries to add a qualitative element , its not perfect, but then all stats can be rendered useless. Shots off target for example - were they decent shots or all from 35 yards?

I don't think the name "Expected Goals" is great, should be Chance Creation, or something better than that.
LookMumImOnMCF.net
Donated to the site
Donated to the site
Denis Law's Backheel
 
Posts: 9316
Joined: Thu Jan 31, 2008 5:49 pm
Supporter of: LookMumI'mOnMCF.net
My favourite player is: LookMumI'mOnMCF.net

Re: Expected Goals

Postby Nigels Tackle » Wed Nov 22, 2017 11:59 am

LookMumImOnMCF.net wrote:Think this might be the article: http://www.bbc.co.uk/sport/football/40699431

I quite like that it tries to add a qualitative element , its not perfect, but then all stats can be rendered useless. Shots off target for example - were they decent shots or all from 35 yards?

I don't think the name "Expected Goals" is great, should be Chance Creation, or something better than that.


the arsenal game was a classic example of where expected goals falls short
we created 7 or 8 very good chances but only a couple of these led to a shot on goal
ARMCHAIR FAN
Nigels Tackle
Donated to the site
Donated to the site
Alan Oakes' 668 Games
 
Posts: 17667
Joined: Tue Jul 17, 2007 7:57 pm
Location: here, there, every fucking where
Supporter of: man love
My favourite player is: riyad meh!rez

Re: Expected Goals

Postby Beefymcfc » Wed Nov 22, 2017 3:17 pm

There's only one 'Expected Goals' that I know of and that's when we're playing the Rags!

PS. Scum!!!
In the words of my Old Man, "Life will never be the same without Man City, so get it in while you can".

The Future's Bright, The Future's Blue!!!
User avatar
Beefymcfc
Anna Connell's Vision
 
Posts: 46340
Joined: Thu Jun 21, 2007 7:14 am
Supporter of: The Mighty Blues

Next

Return to The Maine Football forum

Who is online

Users browsing this forum: CTID Hants, Harry Dowd scored, Majestic-12 [Bot], Mase, MIAMCFC, salford city and 144 guests