What is rating

[Essence]

OK, so let me make sure I have this straight:

Every game you win, your Rating goes up by X, where X is dependent on the deck your league is in. 
Every game you lose, your Rating goes down by Y, where Y is dependent on the deck your league is in.

Your RANK is based on your relative RATING -- which is why RANK is dependent on how long your deck has been in play (longer in play = more games played = more wins = higher rating.)

If your RANK is below 500, your deck becomes inactive, but your RATING is irrelevant except insofar as it determines your RANK.

If your RANK is in the top few, you get a bonus to how much money you make per win, and other people facing you get a bonus to how much they make when they beat your deck.


Currently, you gain 15 points for a Platinum League win and lose 25 points for a Platinum League loss (as evidenced by my current W/L of 18/1 and my current Rating of 275.)

Similarly, you gain 6 points for a Silver League win and lose 5 points for a Silver League loss (as evidenced by my current W/L of 5/1 and rating of 25 points on my alternate.)

[edit]Apparently that's wrong, because I got 1 more win and my rating went up to 36.  That implies that a win is +9 points in Silver and a loss is -20.  Wow.[/edit]

Anyone know the W/L changes for Bronze and Gold?


Is that all accurate?

[lskpiano]

from my experience leagues like gold and plat currently loss > win in rating points so you can have negative rating with more wins than losses
I assume this is in place to remove farm decks and low hp decks faster as they will lose rating(and rank) quickly

That's right. Of course. I knew that but forgot. Please excuse brain fart!

Thanks,
LSK Piano

[Seraph]

Essence I believe the entire thing is a whole lot more dynamic
From what I understood, at some point during the beta each loss (in silver) was worth EXACTLY 10 points, I think it has now changed.
Each win definitely has different worth.
We should get everyone in chat to obsessively follow their arena score, and then we might get some real data

EDIT:
My new deck that was 0-0 got a win (now 1-0) and it now has a rating of 9, maybe each win is worth 9 points
I will now obsessively sit in chat and follow the wins (checking atleast once every 15 minutes)

also I think loss of 20 sounds right, I went from 461 to 401 with 3 straight losses, so I appear to be proving Essence's theory
I still think things are dynamic, but at a much larger scale.

EVEN MORE EDITED EDIT:
My new theory is that Essence's 'X' and 'Y' are dynamically changed made so that people at 0-0 land at just about the 250ish rank

[Donot]

I've been wondering this too.  Does the rank/rating reset every time I post a new arena deck? Does it matter if the new posting is a mod on the same oracle-picked card?
 
I was assuming, with no basis for reliance, that "rank" was my deck was "doing" compared to the other 499 decks in my league.  So my deck's current "rank" of 198 would mean that 197 other decks are "better", based on some unknown formula.  I've asked for that formula before, and got something like "rand(N,X)" which can't be right because random ranking would be silly.  I would hope it's something like ( Seed + Games Won + Number of League Games played since posted) / ( 1 + Games Won + Games Lost + Number of League Games played since posted ) [no, I don't know if that's the right apporach either... I'm just thinking about the important factors]. 
 
As for "Rating", I was hoping it was an overall metric of my decks performance.  That is, some measure of how each deck I've posted has performed, to be used in determining where to put a new deck in the ranks.  So my current "Rating" of 130 would mean that my next deck should be seeded highly.
 
ZANZ!  PLEASE EXPLAIN THIS TO US!  THANK YOU!

[YoungSot]

Essence I believe the entire thing is a whole lot more dynamic
From what I understood, at some point during the beta each loss (in silver) was worth EXACTLY 10 points, I think it has now changed.
Each win definitely has different worth.
We should get everyone in chat to obsessively follow their arena score, and then we might get some real data

EDIT:
My new deck that was 0-0 got a win (now 1-0) and it now has a rating of 9, maybe each win is worth 9 points
I will now obsessively sit in chat and follow the wins (checking atleast once every 15 minutes)

also I think loss of 20 sounds right, I went from 461 to 401 with 3 straight losses, so I appear to be proving Essence's theory
I still think things are dynamic, but at a much larger scale.

EVEN MORE EDITED EDIT:
My new theory is that Essence's 'X' and 'Y' are dynamically changed made so that people at 0-0 land at just about the 250ish rank

My recently submitted deck in Gold was at 66 rating with 11/0 w/l. It just got it's first loss, and it's rating dropped to 36 (w/l 11/1). So atm it looks like we're getting +6 rating per win and -30 per loss in Gold League (ouch). Let's see if those numbers change.

[ggabriel2]

I've been wondering this too.  Does the rank/rating reset every time I post a new arena deck? Does it matter if the new posting is a mod on the same oracle-picked card?
 
I was assuming, with no basis for reliance, that "rank" was my deck was "doing" compared to the other 499 decks in my league.  So my deck's current "rank" of 198 would mean that 197 other decks are "better", based on some unknown formula.  I've asked for that formula before, and got something like "rand(N,X)" which can't be right because random ranking would be silly.  I would hope it's something like ( Seed + Games Won + Number of League Games played since posted) / ( 1 + Games Won + Games Lost + Number of League Games played since posted ) [no, I don't know if that's the right apporach either... I'm just thinking about the important factors]. 
 
As for "Rating", I was hoping it was an overall metric of my decks performance.  That is, some measure of how each deck I've posted has performed, to be used in determining where to put a new deck in the ranks.  So my current "Rating" of 130 would mean that my next deck should be seeded highly.
 
ZANZ!  PLEASE EXPLAIN THIS TO US!  THANK YOU!

Rating is your current deck's score. It goes up when it wins games and goes down when it loses games. Your ranking is your position on the high scores list. The deck with the highest rating has a rank of 1, the next highest has a rank of 2, etc.

New decks don't get seeded based on past performance. A newly submitted deck has a rating of 0, and the rating formula adjusts itself to keep a rating of 0 at around rank 250.

[Rainchild]

My recently submitted deck in Gold was at 66 rating with 11/0 w/l. It just got it's first loss, and it's rating dropped to 36 (w/l 11/1). So atm it looks like we're getting +6 rating per win and -30 per loss in Gold League (ouch). Let's see if those numbers change.

I can confirm this, my rating in Gold league is 108 with 33 wins and 3 losses.
My deck started with 2 straight losses, was at -60 and out of top500 for a while.

[zanzarino]

The numbers you are looking for are constantly changing (dynamic). Currently:

Bronze win: +6
Bronze loss: -10

Silver win: +9
Silver loss: -20

Gold win: +6
Gold loss: -30

Platinum win: +15
Platinum loss: -40

But in a few hours those numbers might change again. They have to change to keep new decks close to rank #250, the more decks are submitted, the higher the competition for the top 250 positions, the lower the rating gained per win.
With constant numbers two bad things would eventually happen:
Bad thing #1: rating gain is too high and new decks enter at rankings >500 and they do not even get a chance to compete
Bad thing #2: rating gain is too low and all decks in the league have a negative score, new decks enter as rank#1

Therefore those numbers will keep fluctuating to maintain the balance, that means that sometime the gain in rating for 1 win is much smaller than the loss of rating, but if in a league there are 1,500 decks submitted (silver,gold) and only the top500 is in the game, only the best decks (top 250, 17%) get positive score.

In other words, the competition for bronze, silver and gold is very bad at the moment, the only way out is to get in platinum league, only about 400 decks there.

 

[Marvaddin]

Well, looks like this explain how some old decks can be in higher positions for a loooooong time. If the numbers change, then probably new decks will need more and more AND MORE wins to reach the high scores some old decks have. This seems kind of lame, if a deck is submitted to be # 250, it could just start with medium value between # 249 and # 251. Strange having a fresh deck with, lets suppose, 100 score? Just dont show it. In this scenario I think even win and loss could be worth the same value, but about this I could be wrong.

Edit: Hmmmm, dunno, but looks like when the numbers change its applied to all games of all decks, not just the games after the change. If its correct, than no real problem, although some decks could change their positions after recalculating the score.

[zanzarino]

Marvaddin, I fail to see what is the difference:

I give 0(constant) as rating to a new deck; +X(variable) for a win

You give X(variable) as rating to a new deck; +N(constant) for a win

Both decks start around rank 250, both decks need to have better win/loss ratio than the other decks to stay in the top 250.
The only difference is that with your system all the numbers in the rating are probably going to be positive, do you particularly hate negative numbers?

I use 0 because it is easier to spot a zero in a series of numbers.

The rating is just a number, I was actually tempted to hide it from the players, since it has almost no meaning (it just determines your rank, which is the important thing), but a few players asked me to display it because they had no idea about how far they were from, for instance, the 1st position in the league.

[Seraph]

Ha I win!
I can read Zanz's code like an illiterate reads books

Although I did have a completely accurate theory!

When do the stats change? daily or actually dynamically?

also Rainchild's story is funny, the first two losses put him out of 500, even though he said he had a nice KDR

[Donot]

This is starting to become more clear.  Thanks.
 
(How do I view the source code?)