Event: Hillingdon Div 2

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Opponent Rating Result
Robert Parsons 1748 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1348 = (1748 + 400 * (0 - 1)) / 1)

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Opponent Rating Result
Phil S Humphry 1433 ½ - ½
Amir Allidina 0 0 - 1
Geoff Richards 1405 1 - 0
Ian K Cross 1709 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1137 = (4547 + 400 * (1 - 1)) / 4)