Event: D&DCL Div 2

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Opponent Rating Result
Justin Smith 1597 ½ - ½
Graham Smith 1539 ½ - ½
Stuart Marshall 1800 0 - 1
George K Heath 1313 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1462 = (6249 + 400 * (0 - 1)) / 4)

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