Event: County Championship

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Opponent Rating Result
Nikolai Harrison 1619 ½ - ½
Elena Cavazzoni 1705 1 - 0
Eldars Gulijevs 1967 ½ - ½
David Flynn 1928 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1805 = (7219 + 400 * (1 - 1)) / 4)

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