Event: Durham League Division B

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Opponent Rating Result
Nigel Hall 1947 1 - 0
Maxim Selemir 1819 1 - 0
Bryan D Harkness 2040 ½ - ½
Nigel Hall 1947 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2238 = (7753 + 400 * (3 - 0)) / 4)

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