Event: IM Brown Shield

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Opponent Rating Result
J Myers 1633 1 - 0
John Hipshon 1721 0 - 1
Halen Harrison 1566 ½ - ½
Ethan Sallis 1622 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1636 = (6542 + 400 * (1 - 1)) / 4)

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