Elo adjustment

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ufm
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Joined: 06 January 2017, 08:38

Re: Elo adjustment

Post by ufm »

ufm wrote: 19 November 2023, 10:53 Thank you for sharing those stats! How can you find them, is there a database only devs can see, or is this info available to all players?
Available to all players. Searched through achievement list.
For example: https://boardgamearena.com/award?game=1892&award=27
After the rating deflation, only 5 players has managed to reach 700.
ufm wrote: 19 November 2023, 10:53 Would it be possible to adjust the ELO rating of games that only give 1 ELO per game, to make them more in line with the rest? Or even Solar Storm, that gives only 2-3?
Solar Storm's rating formula is:

Code: Select all

$score = max(1, ($playerCount - 1 + self::getGameStateValue('gameDifficulty')) * (!self::getGameStateValue('hideResourcesLeft') ? 0.5 : 1));
In 2 players, 2 points in the default mode and 6 points in the hardest mode.
But as I said, the rating change depends on the developer. If you want to go for 1/2/3/4, it's your call.
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SimplicatusGames
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Re: Elo adjustment

Post by SimplicatusGames »

ufm wrote: 02 December 2023, 11:25 But as I said, the rating change depends on the developer. If you want to go for 1/2/3/4, it's your call.
Thank you very much for all the info, in the above post and previous ones!

I see now that Daybreak has disabled ELO completely. Whatever system is chosen, having some form of ELO does at least indicate the experience of other players, even those with just 1 ELO per win. Why would a developer choose to disable ELO?
Our games make you think! https://Simplicatus.Games is an independent publisher and distributor of indie tabletop games.
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ufm
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Re: Elo adjustment

Post by ufm »

https://boardgamearena.com/forum/viewtopic.php?t=33785

This is a BGA-wide change. This game is also affected as well.
Rating is still there, but the exact values are unrevealed now.
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Oshikureto
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Joined: 20 January 2024, 20:05

Re: Elo adjustment

Post by Oshikureto »

Why does it have to have an Elo system anyways?

It's not a competitive game. Players are not playing against each other, therefore they need no ranking.

Elo system was design to measure a player's strenght and his likelihood of winning against another player who also has an Elo rating.

Players are not trying to win over each other. It's a coop game. It would only make sense if it was a team of 2 against another team of 2.

"The Elo[a] rating system is a method for calculating the relative skill levels of players in zero-sum games such as chess. It is named after its creator Arpad Elo, a Hungarian-American physics professor.

Zero-sum game is a mathematical representation in game theory and economic theory of a situation that involves two sides, where the result is an advantage for one side and an equivalent loss for the other.[1] In other words, player one's gain is equivalent to player two's loss, with the result that the net improvement in benefit of the game is zero.

The difference in the ratings between two players serves as a predictor of the outcome of a match. Two players with equal ratings who play against each other are expected to score an equal number of wins. A player whose rating is 100 points greater than their opponent's is expected to score 64%; if the difference is 200 points, then the expected score for the stronger player is 76%. "
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