Event: Division Two

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Opponent Rating Result
William Boothman 143 ½ - ½
Pete Redmond 160 0 - 1
Keith Marsh 123 1 - 0
Richard Zaidman 135 ½ - ½
Dave Colledge 141 0 - 1
Andrew Bland 131 ½ - ½
Brian Yarker 132 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

81 = (965 + 400 * (1 - 2)) / 7)

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