Event: Northamptonshire Silver King League Division 1

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Opponent Rating Result
Paul Young 1644 0 - 1
Jonathan Cleghorn 1818 1 - 0
Stellio Jerome 1602 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1555 = (5064 + 400 * (1 - 2)) / 3)

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