Event: 4 Board League B

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Opponent Rating Result
Gordon Farrar 1793 0 - 1
William Boothman 1754 ½ - ½
Gordon Farrar 1821 0 - 1
Lee Crawford 1830 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1500 = (7198 + 400 * (0 - 3)) / 4)

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