Event: Division Two

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Opponent Rating Result
Alastair G Johnstone 137 0 - 1
Mary Helen Deans 134 1 - 0
Pranav Vaidya 16 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

229 = (287 + 400 * (2 - 1)) / 3)

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