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Old February 5th 04, 07:43 PM
David Richerby
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Default World Football Elo Ratings

Anders Carlsson wrote:
"Alan O'Brien" writes:
I didn't know that Elo ratings were used for other sports.


I don't think I knew of Elo's rating system being used for anything other
than chess but it's a general enough system that it doesn't surprise me
that somebody else is using it.


I don't know how representative it is to have 30% of the participants
beyond 2000 in an ELO based system, but I believe I can benefit from
this artificial rating somehow.


To nitpick, it's `Elo', not `ELO'. The system is named after it's
inventer, Arpad Elo. It's not an acronym.

You can't really compare one set of Elo ratings with another. For a
start, it depends on what the initial rating of a new player is. It may
be that the effect you're seeing is a starting transient -- systems like
this take a while to settle down to the `true rating'.


Dave.

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