Event: Northamptonshire Silver King League Division 2

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Opponent Rating Result
Kenny (Kehinde) Gbolade 1572 1 - 0
Claude Masseron 1686 0 - 1
Peter Storey 1491 1 - 0
Bob McDonald 1694 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1711 = (6443 + 400 * (2 - 1)) / 4)

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