Event: Folkestone Club Championship

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Opponent Rating Result
Benjamin Kiss 1375 0 - 1
Mariam Mohana 1341 1 - 0
David Erwee 1533 0 - 1
Robert Twigg 1383 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1408 = (5632 + 400 * (2 - 2)) / 4)

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