Event: Hammersmith Sledgehammer Cup

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Opponent Rating Result
David Selden 1326 0 - 1
Thomas Knowland 1764 0 - 1
Alexandra Kramskaya 1429 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1106 = (4519 + 400 * (0 - 3)) / 3)

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