Event: Division 2

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Opponent Rating Result
Tim R Poole 1783 1 - 0
Neil Graham 1760 1 - 0
Alan R Griffiths 1878 0 - 1
Sebastian Griffin-Young 1766 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1997 = (7187 + 400 * (3 - 1)) / 4)

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