Event: IM Brown

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Opponent Rating Result
Peter Rawcliffe 0 1 - 0
Bruce R Oliver 0 ½ - ½
Jim E Vickery 0 ½ - ½
Anthony Ibbitson 0 1 - 0
Paul Solomons 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

160 = (0 + 400 * (2 - 0)) / 5)

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