Event: U1800 Cup

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Opponent Rating Result
Judith Heffer 1686 ½ - ½
Les J Jones 1721 ½ - ½
Simon Riley 1714 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1707 = (5121 + 400 * (0 - 0)) / 3)

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