Event: 7400-max Rapid-play

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Opponent Rating Result
Chris Chadwick 1943 0 - 1
Gavin Cartwright 1889 1 - 0
Chris Chadwick 1943 0 - 1
Gavin Cartwright 1889 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1916 = (7664 + 400 * (2 - 2)) / 4)

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