Event: Hillingdon Div X

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Opponent Rating Result
Ananya Patel 1433 0 - 1
Alexander Yeo 986 0 - 1
Gautam Sriram 1294 0 - 1
Eevan Pennant-Shah 1035 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

987 = (4748 + 400 * (1 - 3)) / 4)

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