Event: Northamptonshire Silver King League

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Opponent Rating Result
Paul Young 0 0 - 1
Thomas Murts 1353 1 - 0
Matthew Edwards 1338 1 - 0
Arrow Morris 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

673 = (2691 + 400 * (2 - 2)) / 4)

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