Event: Derby & District Division 3

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Opponent Rating Result
Piotr Natoniewski 1477 ½ - ½
Edward Brown 1474 1 - 0
Carl Weighill 0 1 - 0
Dean Davis 1316 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1367 = (4267 + 400 * (3 - 0)) / 4)

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