Event: Division 3

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Opponent Rating Result
Tom Gordon 1779 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1379 = (1779 + 400 * (0 - 1)) / 1)

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Opponent Rating Result
David Welsh 1507 1 - 0
Martyn Colebrook 1518 ½ - ½
John Harvey 1313 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1713 = (4338 + 400 * (2 - 0)) / 3)