Event: Silver Rook

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Opponent Rating Result
Cameron Funnell 125 0 - 1
Robert A South 106 ½ - ½
Simon Watson 153 0 - 1
Steve Parker 157 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-165 = (541 + 400 * (0 - 3)) / 4)

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