in reply to Re^7: Algorithm problem: Order matches by difference between players
in thread Algorithm problem: Order matches by difference between players

Eh, no. Swiss does order players by rank if they tie in score, but then splits the pile, and have the top of each pile play against each order. For instance, with 8 players, ranked from 1 to 8, the first round is pairs 1-5, 2-6, 3-7, 4-8.

Also in Swiss, colour preferences are more important when pairing than ratings are.

For details of the Swiss pairing rules, see FIDE Swiss Rules.

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Re^9: Algorithm problem: Order matches by difference between players
by davies (Monsignor) on Apr 19, 2011 at 09:56 UTC

    I agree about colour, but only in Chess, although that can be treated as Home/Away for some sports. I've certainly played in some Swiss tournaments that work as I described. I'm not surprised that there are many different interpretations, so whatever the OP wants, he would be wise to check that the code does what he wants before relying on it.

    Regards,

    John Davies