Event: Silver Rook

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Opponent Rating Result
Charlie Woodbridge 1821 1 - 0
R Itoe 1694 ½ - ½
Colin Frank 1619 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1711 = (5134 + 400 * (1 - 1)) / 3)

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