Event: 1st Cornwall Autumn U1975 2022

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Opponent Rating Result
Ian Bush 1916 0 - 1
Dave J Williams 1722 0 - 1
Percy TP Gill 1758 1 - 0
Andrew C Waters 1893 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1622 = (7289 + 400 * (1 - 3)) / 4)

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