Event: Division 1

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Opponent Rating Result
Rasa Norinkeviciute 182 0 - 1
Mark Broom 200 ½ - ½
David N Roberts 170 ½ - ½
Francis Rayner 193 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-14 = (745 + 400 * (0 - 2)) / 4)

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