Event: Club Rapidplay

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Opponent Rating Result
Ibrahim Abouchakra 1526 1 - 0
Ibrahim Abouchakra 1526 0 - 1
Simon D Lea 1760 0 - 1
Simon D Lea 1760 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1643 = (6572 + 400 * (2 - 2)) / 4)

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