Event: Rapid Play League

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Opponent Rating Result
Patrick Joseph 1940 0 - 1
Patrick Joseph 1940 0 - 1
Mark R Priest 0 ½ - ½
Mark R Priest 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

770 = (3880 + 400 * (0 - 2)) / 4)

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