Event: Individual Championship

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Opponent Rating Result
David A Phillips 181 1 - 0
John G Cooper 170 ½ - ½
Graham J Ashcroft 161 0 - 1
Malcolm R Peacock 183 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

74 = (695 + 400 * (1 - 2)) / 4)

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