Event: Gambit Rapidplay

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Opponent Rating Result
Michael A Naylor-Eade 1908 0 - 1
Michael A Naylor-Eade 1908 0 - 1
Paul Wileman 1494 ½ - ½
Paul Wileman 1494 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1601 = (6804 + 400 * (1 - 2)) / 4)

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