Event: Portsmouth Club Championship

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Opponent Rating Result
Simon Venables 1879 1 - 0
Christopher Campbell 1511 1 - 0
Itmam Ekram 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1530 = (3390 + 400 * (3 - 0)) / 3)

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