Event: First Mike Duck Online Tournament

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Opponent Rating Result
Graham L Cole 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

400 = (0 + 400 * (1 - 0)) / 1)

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Opponent Rating Result
Mark Sayers 0 0 - 1
Graham Cluley 0 1 - 0
Alexander Hughes 0 1 - 0
Otto Rasanen 0 1 - 0
Philip T Hayward 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

240 = (0 + 400 * (4 - 1)) / 5)