Event: Rapid Play League

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Opponent Rating Result
Ben Strutt 1758 0 - 1
Ben Strutt 1758 0 - 1
Ben D Science 1669 ½ - ½
Ben D Science 1669 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1414 = (6854 + 400 * (0 - 3)) / 4)

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