Event: 30 Minute Rapid

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Opponent Rating Result
Paul Terry 1787 0 - 1
Glen Smith 0 1 - 0
Robert J Arthurton 1471 0 - 1
Michael Brant 929 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1047 = (4187 + 400 * (2 - 2)) / 4)

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