Event: Broadstairs Summer Swiss

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Opponent Rating Result
Reginald G Pidduck 1473 1 - 0
Ian A Hames 1825 0 - 1
Trefor H Owens 1960 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1619 = (5258 + 400 * (1 - 2)) / 3)

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