Event: County Championship

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Opponent Rating Result
Denis Georgiou 0 1 - 0
Paul A Hutchinson 0 1 - 0
Joe Kilshaw 0 1 - 0
Alexandr Klimchik 0 0 - 1
Raymond J Ilett 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

240 = (0 + 400 * (4 - 1)) / 5)

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