Event: Two West

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Opponent Rating Result
David C Helsby 1810 ½ - ½
Zain Patel 1601 1 - 0
Cian Ward 1570 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1927 = (4981 + 400 * (2 - 0)) / 3)

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