Event: IM Brown

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Opponent Rating Result
Nathaniel Mackenzie 1295 1 - 0
Gary Hinchcliffe 1825 0 - 1
John Hipshon 1693 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1471 = (4813 + 400 * (1 - 2)) / 3)

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