Event: D&DCL Div 3

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Opponent Rating Result
Edward Brown 106 ½ - ½
Herbert TT Loomes 106 0 - 1
Norman W Parkin 105 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

106 = (317 + 400 * (1 - 1)) / 3)

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