Event: Division 3

Opponent Rating Result
Harry Gardiner 131 ½ - ½
Peter Shaw 108 ½ - ½
Roger W Walker 127 0 - 1
Ellen Scattergood 91 0 - 1
Peter Shaw 108 1 - 0
Nicholas PA Wright 112 1 - 0
Andrew Barker 123 ½ - ½
Ellen Scattergood 91 1 - 0
David A Hallen 99 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

110 = (990 + 400 * (3 - 3)) / 9)

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