Event: 7400-max Rapid-play

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Opponent Rating Result
Marek J Soszynski 1843 0 - 1
Marek J Soszynski 1843 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1443 = (3686 + 400 * (0 - 2)) / 2)

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