Event: DCL Div 3

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Opponent Rating Result
David Arorash 113 0 - 1
John R Bowley 125 ½ - ½
Derek Mount 122 1 - 0
David Arorash 113 1 - 0
W John Kelly 125 1 - 0
William J Woodhouse 125 ½ - ½
Derek Mount 122 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

292 = (845 + 400 * (4 - 1)) / 7)

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