Elo system update

[Diablo_]

Based on our poll (viewtopic.php?f=207&t=86360) the Elo system has now changed.

Teams are still built randomly.
But the Elo !scores are no longer 15/15 but rather based on the Elo difference of the teams.
Note that !scores doesn't show the real Elo gain/loss, LIHL uses its own function for the Elo calculation which !scores doesn't reflect.

Our Elo calculation function now is (lg = log with base 10):
12*lg(1+7*(1-(1/(1+(x/1000)))))+15

You can see the Elo curve here:
http://www.wolframalpha.com/input/?i=12 ... m+0+to+700

As some guidelines:
000 Elo diff = 15/15
040 Elo diff = 14/16
080 Elo diff = 13/17
120 Elo diff = 12/18
200 Elo diff = 11/19
300 Elo diff = 10/20
450 Elo diff = 9/21
700 Elo diff = 8/22

Please check if there are any problems with the change and if so post them here!

[Jamo]

Nice, I like!

2 questions:
1. Team building is 100% random, or are e.g. yellow or red spots reserved for highest elo players?
2. I guess there is no way knowing ingame how much elo I win/lose in a game, right?

[Diablo_]

1. It should (still) be 100% random.
2. You can either check the Elo difference between teams and look at the function plot or just think it's (probably) somewhere between 15/15 and 9/21

000 Elo diff = 15/15
100 Elo diff = 12/18
200 Elo diff = 10/20
300 Elo diff = 9/21
450 Elo diff = 8/22
700 Elo diff = 7/23

Edit: numbers are outdated, see first post for correct ones.

[Don_Killuminati]

Its update yet ?
@diablo_

[RadiantCrystal]

@Don_Killuminati

https://entgaming.net/forum/viewtopic.p ... 41#p352441

It should be

[Diablo_]

It should be updated since today according to uakf.b

[TinSoldier]

I think the scaling is off diablo,

less than 200 elo differene

but we gained 22

https://entgaming.net/findstats.php?id=7739652

[Nore]

https://entgaming.net/findstats.php?id=7739215

Gained 7 ELO for this game only when it was supposed to be 11ish.. unless I am missing something.

[RadiantCrystal]

@uakf.b could you give this a check please?

[uakf.b]

So it is +10/-20 if winning team has 200 ELO more than losing team. But what if losing team has 200 ELO more than winning team?

[Diablo_]

Just for clarification, those numbers in the first posts are just some guidelines and not 100% correct.

To me it seems like the normal pub Elo function is used and not the LIHL one: x=12*lg(1+9*(1-(1/(1+(x/1000)))))+15 with lg being base 10 logarithm.

Then it should be the opposite, uakf.b (as always). e.g. 1200 Elo team A vs 1000 Elo team B, Elo at stake is e.g. 10/20. If A wins A gets 10 Elo, B loses 10 Elo. If B wins A loses 20 Elo and B gets 20 Elo.

[pewpew lasergun]

any update ?
players are breaking rules to circumvent the issue by using !votebalance every game.

[Diablo_]

Maybe uakf.b didn't follow this thread anymore so I pmed him again yesterday. I (or uakf.b) will post if there's an update/fix.

[Diablo_]

And the news are already here

uakf.b fixed it (probably).

We also changed the function a little bit again (to drag it a bit closer to 15/15), it now is:
12*lg(1+7*(1-(1/(1+(x/1000)))))+15 (formerly was 12*lg(1+9*(1-(1/(1+(x/1000)))))+15)

You can see the Elo curve here:
http://www.wolframalpha.com/input/?i=12 ... m+0+to+700

As some guidelines:
000 Elo diff = 15/15
040 Elo diff = 14/16
080 Elo diff = 13/17
120 Elo diff = 12/18
200 Elo diff = 11/19
300 Elo diff = 10/20
450 Elo diff = 9/21
700 Elo diff = 8/22

If you think anything is still wrong, please pm us/post here.