Event: Essex Summer Rapid Plate

Opponent Rating Result
Igor Naumov 1732 ½ - ½
Igor Naumov 1732 0 - 1
Colin Li 1567 1 - 0
Keith S Jones 1679 0 - 1
Paul Bancroft 1989 0 - 1
Paul Bancroft 1989 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1715 = (10688 + 400 * (2 - 3)) / 6)

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