Event: Essex Summer Rapid Plate

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Opponent Rating Result
Matthias Lataille 1664 1 - 0
Matthias Lataille 1664 ½ - ½
Richard Saunders 1781 1 - 0
Richard Saunders 1781 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1923 = (6890 + 400 * (2 - 0)) / 4)

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