Event: U1800 Cup

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Opponent Rating Result
Tom Gordon 1792 0 - 1
John WF McAllister 1634 ½ - ½
Alonso Paez 1618 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1415 = (5044 + 400 * (0 - 2)) / 3)

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