Event: League Division 2

Opponent Rating Result
Keith J Riach 1690 1 - 0
John Hipshon 1670 ½ - ½
James Wong 1692 0 - 1
David Wells 1854 ½ - ½
Frank T Sheldrick 1715 ½ - ½
Zana Aziz 1803 1 - 0
Keith J Riach 1690 1 - 0
John Hipshon 1670 0 - 1
William Butterworth 0 ½ - ½
Robert Dennington 1567 1 - 0
Michael I Connor 1787 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1667 = (17138 + 400 * (5 - 2)) / 11)

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