Event: Cornwall Online League

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Opponent Rating Result
Christine F Constable 0 0 - 1
Richard Nancarrow 0 0 - 1
Bryan Jones 0 1 - 0
Ivan Gerasimenko 0 1 - 0
David J Jenkins 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-80 = (0 + 400 * (2 - 3)) / 5)

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

-400 = (0 + 400 * (0 - 1)) / 1)