Event: Open-Rapid-play

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Opponent Rating Result
Phil Bull 1852 ½ - ½
Bruce L Baer 2000 0 - 1
Phil Bull 1852 ½ - ½
Bruce L Baer 2000 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1726 = (7704 + 400 * (0 - 2)) / 4)

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