Event: Division A

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Opponent Rating Result
Dave C Martindale 162 ½ - ½
Con Carey 126 1 - 0
Armand Catz 169 ½ - ½
Alan Pidcock 136 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

148 = (593 + 400 * (1 - 1)) / 4)

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