Event: Gordon Nobbs League

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Opponent Rating Result
William Jay 1443 0 - 1
Geoffrey Wilson 1454 0 - 1
Geoffrey Wilson 1454 1 - 0
Martin Quinn 1784 0 - 1
Martin Quinn 1784 0 - 1
Paul Green 1378 1 - 0
Paul Green 1378 1 - 0
Anthony Tatam 1467 ½ - ½
Anthony Tatam 1467 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1423 = (13609 + 400 * (3 - 5)) / 9)

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