[BUG] ELO calculation

[BUG] ELO calculation

Message par petyr » 30 Août 2016 18:29

In the game 2347 ( http://boiteajeux.net/jeux/myk/partie.php?id=2347 ) all players gained negative ELO (I see them in the final email) - how is this possible?
"Life is but a game" ("La vie n'est qu'un jeu"). What kind of game is your life?

And I'll never play games with 30 day limit again!
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Re: [BUG] ELO calculation

Message par Xo » 31 Août 2016 12:27

Hi Petyr
The curse of the mummy you have disturbed, I think ;)

More seriously, can you please post the email content, with the loss per player ?
It sounds like a bug, the sum of the elo gain/loss should be (more or less) 0
/Xo
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Re: [BUG] ELO calculation

Message par lynkowsky » 31 Août 2016 17:25

We allready saw this bug : as 1 player was unrated (replacement), this was a 3 players game for rating :
- 2 strong players draw first
- weak player 3rd.
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Re: [BUG] ELO calculation

Message par petyr » 01 Sep 2016 23:01

Yes, it's exactly as lynkowsky said (baratzanthatul was a replacing player):

Game #2347 is over!
Winner(s) : Arkonys, Sebos77

1. Arkonys [ELO -3] (1747 --> 1744)
1. Sebos77 [ELO -1] (1728 --> 1727)
3. baratzanthatul [ELO +0] (1468 --> 1468)
4. petyr [ELO -2] (1286 --> 1284)
"Life is but a game" ("La vie n'est qu'un jeu"). What kind of game is your life?

And I'll never play games with 30 day limit again!
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Re: [BUG] ELO calculation

Message par flogae » 02 Sep 2016 0:00

Can anyone publish the ELO formula that is used here at BAJ?
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