Event: 4-Board Division 1

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Opponent Rating Result
Ian Scott 1610 ½ - ½
Christopher J Harris 1458 0 - 1
Keith Mulholland 1100 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1389 = (4168 + 400 * (1 - 1)) / 3)

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