Event: Division 2

Opponent Rating Result
Dominic A Carter 1646 1 - 0
Robert W Stephens 1732 ½ - ½
Stephen Lewis 1894 ½ - ½
Andrew J Donnelly 1831 ½ - ½
Judith Heffer 1709 1 - 0
Graeme Jones 1700 0 - 1
Stephen Lewis 1902 ½ - ½
Andrew J Donnelly 1820 ½ - ½
Judith Heffer 1698 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1815 = (15932 + 400 * (2 - 1)) / 9)

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