Event: Harry Lamb

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Opponent Rating Result
Dan Corbishley 994 0 - 1
Dan Corbishley 994 1 - 0
Charlie Locke 1059 0 - 1
Charlie Locke 1059 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

927 = (4106 + 400 * (1 - 2)) / 4)

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