Event: Durham League Division B

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Opponent Rating Result
Jason Robson 1445 0 - 1
Elliott Maitland-Davies 0 ½ - ½
Sebastian Palucha 1328 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

924 = (2773 + 400 * (1 - 1)) / 3)

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