Event: IM Brown Shield

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Opponent Rating Result
Chris S Edwards 1701 1 - 0
John Hipshon 1740 1 - 0
Alex Morris 0 1 - 0
Geoffrey D Brown 1726 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1592 = (5167 + 400 * (3 - 0)) / 4)

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