Event: Durham League Division B

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Opponent Rating Result
Bryan J Bainbridge 1558 ½ - ½
Stephen Carter 1737 0 - 1
Daniel Williams 1602 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1632 = (4897 + 400 * (1 - 1)) / 3)

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