Event: Cambs Division 2

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Opponent Rating Result
Colin Emery 1725 1 - 0
Francis J Bowers 1843 ½ - ½
Colin Emery 1725 ½ - ½
Adam Nawalaniec 2142 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1859 = (7435 + 400 * (1 - 1)) / 4)

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