Event: Christmas Rapidplay

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Opponent Rating Result
Matthew Hartill 487 1 - 0
Toefl Lankapura 1490 0 - 1
Joseph Hartill 826 1 - 0
Maurice Olum 1387 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1048 = (4190 + 400 * (2 - 2)) / 4)

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