Event: IM Brown

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Opponent Rating Result
Dave V Toulson 114 1 - 0
Richard Tate 103 1 - 0
Eric P Davies 100 0 - 1
Trevor Hudson 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

179 = (317 + 400 * (2 - 1)) / 4)

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