Event: Northamptonshire Silver King League Division 1

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Opponent Rating Result
Kirk Harrison 1722 0 - 1
Daniel Worley 1558 1 - 0
Dominique Conterno 1803 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1561 = (5083 + 400 * (1 - 2)) / 3)

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