Event: Winter Online

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Opponent Rating Result
Sheraz Khalil 1721 1 - 0
Sheraz Khalil 1721 0 - 1
Anthony DB Wilkinson 1561 0 - 1
Anthony DB Wilkinson 1561 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1441 = (6564 + 400 * (1 - 3)) / 4)

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