Event: Club Championship Div 1

Opponent Rating Result
Cyrus Pereira 1834 0 - 1
Andrew L Raeburn 1859 ½ - ½
Karl Lockett 1822 0 - 1
Harry Gardiner 1902 0 - 1
Pawel Stanny 1460 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1455 = (8877 + 400 * (0 - 4)) / 5)

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