Event: 2nd Cornwall Autumn Open

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Opponent Rating Result
Stephen J Homer 2091 0 - 1
Lloyd Retallick 2063 0 - 1
Roger D de Coverly 1996 0 - 1
Patryk Krzyzanowski 2162 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1878 = (8312 + 400 * (1 - 3)) / 4)

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