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jorgepedro

ELO Ratings

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Hi. I would like to congratulate SirPuntalot for this great tool for betting. But I have some questions about it:

- How are the absolute performance ratings calculated? Wich criteria does the system consider?  (Ex: Passes, shots, possession? )

- do the ratings take into consideration opposition strenght? For example: Villareal getting a 20 rating when playing at Bernabéu should not be the same as having 20 when they face a lower side at home. Is it?

Sorry for my english. 

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5 hours ago, jorgepedro said:

Hi. I would like to congratulate SirPuntalot for this great tool for betting. But I have some questions about it:

- How are the absolute performance ratings calculated? Wich criteria does the system consider?  (Ex: Passes, shots, possession? )

- do the ratings take into consideration opposition strenght? For example: Villareal getting a 20 rating when playing at Bernabéu should not be the same as having 20 when they face a lower side at home. Is it?

Sorry for my english. 

:welcome to PL @jorgepedro :ok 

Ratings formula isn't given, but they are very logical. ;) 

Opposition strength isn't taken into account. The ratings have to be interpreted as you see them, and also judge recent performances based on the opposition played, but calculating that into the ratings is next to impossible and over complicating why they were created in the first place. :ok 

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Thank you for Your reply. I asked because I like to bet on some leagues that are not listed (Spain 2nd Div, Bundesliga 3, Slovakia 2nd) so I was thinking on doing the calculations roughly by miself...that is, if you're not planing on adding some New leagues, are you? :D

Another question: are the ratings absolute or relative to the game? For example, if a team as a 30 rating in two different matches, does that mean that both were the same kind of performance? (Imagine this simple hipotetical scenario where a team loses 2-0 and get a 30 rating and on the next game they win 2-0 and get the same 30 rating, does that mean that the performance was equal in both games?)

If they are absolute, wich rating do you consider:

-a poor performance (ex: less than 10?)

-a decent perf.

-a good perf.

-an excelent perf.

Is there a minimum and a maximum rating points that a team can get? 

:) I'm sorry for asking so many questions but I'm trying to maximize the info that this ratings gives us, that is already very good, thanks to you.

I noticed One thing: not all the ELO ratings are available on the main menu (Ex: Norway, Czech republic 2) so some people could miss those leagues if they don't check the top menu. :)

Edited by jorgepedro

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On 10/1/2017 at 4:58 AM, jorgepedro said:

Thank you for Your reply. I asked because I like to bet on some leagues that are not listed (Spain 2nd Div, Bundesliga 3, Slovakia 2nd) so I was thinking on doing the calculations roughly by miself...that is, if you're not planing on adding some New leagues, are you? :D

Another question: are the ratings absolute or relative to the game? For example, if a team as a 30 rating in two different matches, does that mean that both were the same kind of performance? (Imagine this simple hipotetical scenario where a team loses 2-0 and get a 30 rating and on the next game they win 2-0 and get the same 30 rating, does that mean that the performance was equal in both games?)

If they are absolute, wich rating do you consider:

-a poor performance (ex: less than 10?)

-a decent perf.

-a good perf.

-an excelent perf.

Is there a minimum and a maximum rating points that a team can get? 

:) I'm sorry for asking so many questions but I'm trying to maximize the info that this ratings gives us, that is already very good, thanks to you.

I noticed One thing: not all the ELO ratings are available on the main menu (Ex: Norway, Czech republic 2) so some people could miss those leagues if they don't check the top menu. :)

@jorgepedro

Unfortunately what we've found in the smaller leagues is that sometimes matches have stats and sometimes not. Also, they vary in accuracy dramatically, so we ditched them as I wasn't confident in any one set of stats I came across.

If a team has a 30 rating in 2 different matches, it's an identical performance, however away matches are weighted slightly higher because it's harder to play away from home for most teams. :ok 

I consider anything below 25 a below very average performance. You'll see teams with a minus occasionally, and that means they were absolutely awful. To the other side of the coin, anything above 50 is way above average in my opinion. However, you have to take every performance as just a guide based on the opposition, but generally they are an excellent "at a glance" guide.

No minimum or maximum, I've seen minus ratings and I've seen over 100, but they are both rare.

I'll check those leagues you mentioned, but we got rid of some because of missing data where the supplier didn't have info for some matches. I'll go over those and point them out. The top leagues have no missing data, but even with some missing matches here and there for minor leagues, it's still a decent guide.


 

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thank you for your answer. let me just point again the fact that the main menu is missing some leagues and another thing that you mentioned about some leagues missing stats: if you check Iceland league in your ELO ratings, there are some matches where both teams rated 0.00 and I think that's an indication that something is missing. thanks again. ;)

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