Event: Division 1

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Opponent Rating Result
Richard J West 134 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

134 = (134 + 400 * (0 - 0)) / 1)

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Opponent Rating Result
Magdi Idris 153 0 - 1
Tamsin White 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-324 = (153 + 400 * (0 - 2)) / 2)