Event: Hillingdon Div 2

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Opponent Rating Result
Daniel Evans 1680 1 - 0
Pavan Parola 1275 1 - 0
Mary Helen Deans 1663 1 - 0
Varish Tarigopula 1422 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1910 = (6040 + 400 * (4 - 0)) / 4)

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