Event: Durham League Division B

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Opponent Rating Result
David Kelly 1590 ½ - ½
Sebastian Palucha 1322 1 - 0
Elliott Maitland-Davies 1549 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1754 = (4461 + 400 * (2 - 0)) / 3)

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