Event: U1800 Cup

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Opponent Rating Result
John WF McAllister 1743 0 - 1
Samuel Gaffney 1780 ½ - ½
Alonso Paez 0 ½ - ½
Simon Webber 0 0 - 1
Alonso Paez 1653 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

955 = (5176 + 400 * (1 - 2)) / 5)

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