Event: Division 1

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Opponent Rating Result
Graham D Neville 157 ½ - ½
Gary R Andriessen 160 0 - 1
Indy Southcott-Moyers 84 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

134 = (401 + 400 * (1 - 1)) / 3)

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