Event: County Individual

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Opponent Rating Result
Mark Lim 1908 0 - 1
Charles J Richmond 0 0 - 1
Adam Majewski 0 1 - 0
Guanxing Yi 0 0 - 1
Marek Zajaczkowski 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

142 = (1908 + 400 * (1 - 4)) / 5)

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