Event: Rapid Play League

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Opponent Rating Result
Peter D Rooney 2088 0 - 1
Peter D Rooney 2088 ½ - ½
Roger W Jennings 1913 ½ - ½
Roger W Jennings 1913 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1901 = (8002 + 400 * (0 - 1)) / 4)

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