Event: Northamptonshire Silver King League Division 2

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Opponent Rating Result
Ian Peterson 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

400 = (0 + 400 * (1 - 0)) / 1)

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Opponent Rating Result
Robert Mills 1285 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1685 = (1285 + 400 * (1 - 0)) / 1)