Event: TCL Division 4

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Opponent Rating Result
Oliver Mortimer 94 0 - 1
Neil Perry 67 1 - 0
Michael Hussey 104 1 - 0
Kenneth Hayden-Sadler 65 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

283 = (330 + 400 * (3 - 1)) / 4)

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