Event: Silver Rook

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Opponent Rating Result
Colin Frank 1597 ½ - ½
James Annan 1816 1 - 0
Mohammad Abdulhamid 1752 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1722 = (5165 + 400 * (1 - 1)) / 3)

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