Event: BCL Division 2

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Opponent Rating Result
James Grimditch 1562 1 - 0
Nigel Collins 1501 1 - 0
George Griffiths 1557 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1940 = (4620 + 400 * (3 - 0)) / 3)

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