Event: Examiner League

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Opponent Rating Result
Matthew Sayer-Smith 1776 1 - 0
Colin Dixon 1586 1 - 0
Andrew Batley 1555 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1772 = (4917 + 400 * (2 - 1)) / 3)

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