Event: Northamptonshire Silver King League Division 2

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Opponent Rating Result
Ethan Rowe 1768 0 - 1
David Caldwell 1435 0 - 1
Thomas Schloesser 1639 ½ - ½
Dan Becker 1073 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1379 = (5915 + 400 * (1 - 2)) / 4)

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