Event: Silver Rook

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Opponent Rating Result
Andrew Zigmond 128 ½ - ½
Owen R Robson 154 0 - 1
Dean Hepworth 117 ½ - ½
Ian D Strickland 127 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

32 = (526 + 400 * (0 - 1)) / 4)

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