Event: IM Brown

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Opponent Rating Result
Vivien Webster 137 ½ - ½
Christopher Lund 120 1 - 0
Darren McCarthy 132 1 - 0
Stephen Forbes 118 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

427 = (507 + 400 * (3 - 0)) / 4)

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