Event: U1800 Cup

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Opponent Rating Result
Piotr Dolewka 1510 1 - 0
John WF McAllister 1743 ½ - ½
Mark A Pulman 1623 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1892 = (4876 + 400 * (2 - 0)) / 3)

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