Event: IM Brown

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Opponent Rating Result
Owen R Robson 0 1 - 0
William Boothman 0 ½ - ½
Richard O Callis 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

133 = (0 + 400 * (1 - 0)) / 3)

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