Event: Northamptonshire Silver King League Division 1

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Opponent Rating Result
Steve Walpole 1802 1 - 0
Martin Crichton 1965 ½ - ½
Antonio Mura 1750 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2106 = (5517 + 400 * (2 - 0)) / 3)

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