Event: Division 3

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Opponent Rating Result
Richard Buxton 1457 ½ - ½
Gregory Kornilovich 1507 0 - 1
Oliver Gray 1603 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1522 = (4567 + 400 * (1 - 1)) / 3)

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