Event: IM Brown

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Opponent Rating Result
Nathaniel Holroyd-Doveton 141 ½ - ½
Stephen Forbes 115 1 - 0
E Gordon Marks 129 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

395 = (385 + 400 * (2 - 0)) / 3)

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