Event: Library Rapidplay May

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Opponent Rating Result
Clair Hartill 0 1 - 0
James Reidy 0 1 - 0
Tashil Lankapura 1330 0 - 1
Toefl Lankapura 1520 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

713 = (2850 + 400 * (2 - 2)) / 4)

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