Event: Rapid Play League

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Opponent Rating Result
Duncan Stables 1712 1 - 0
Duncan Stables 1712 1 - 0
Dale H Cullum 1757 ½ - ½
Dale H Cullum 1757 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1835 = (6938 + 400 * (2 - 1)) / 4)

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Opponent Rating Result
Alexander Greenhough 0 0 - 1
Alexander Greenhough 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-400 = (0 + 400 * (0 - 2)) / 2)