Event: Super League

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Opponent Rating Result
Nigel Hosken 2040 0 - 1
Robert Ashworth 1899 ½ - ½
Gary R Andriessen 1914 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1684 = (5853 + 400 * (0 - 2)) / 3)

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