Event: West of England Counties Online Championship

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Opponent Rating Result
Petra Nunn 2047 ½ - ½
John Jenkins 2061 0 - 1
Ian C Clark 1200 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1503 = (5308 + 400 * (0 - 2)) / 3)

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