Im not able to head about it. Can someone explain
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Elo is the rating system developed for chess, but it’s also used in other games where one side wins and the other loses. Adaptations have been made for games with a score, where winning 5-2 is better than winning 3-2, but that’s not traditional Elo. It’s also not an acronym, it’s named after a guy named Elo who invented it.
The concept is that the difference in ratings is a predictor of match outcome. So, If I have a much higher rating, I’m expected to win so if I win my rating changes little. On the other hand, if I lose my rating (and the lowly rated player that beat me’s rating) changes by a larger amount.
There is no meaning in the absolute value of the rating, like you see in a golf handicap. Only the relative rating between two players/teams is important.
Imagine you and your friend love playing a game together. To figure out how good each of you is at the game, you come up with a special number for each person. This number tells you how skilled or strong a player is.
Let’s say you start with the same number for both of you, let’s call it 1000. Every time you play a game, if you win, your number goes up a little bit. If you lose, your number goes down a little bit. The bigger the difference between the numbers, the more likely the person with the higher number will win.
Now, here’s the twist: if you beat someone with a much higher number than yours, your number goes up a lot. And if you lose to someone with a much lower number, your number goes down a lot. This way, the numbers change based on how well you play and who you play against.
This system is kind of like a measuring tool to compare players. Over time, the numbers start to show who the really strong players are and who might need more practice. It’s like a way to rank players in a fair way without needing to play a million games.
This is the basic idea behind the Elo rating system. It’s used in many games, sports, and even things like chess to see who’s the best without making everyone play against each other all the time.
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