Event: North Norfolk Rapidplay (25|10)

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Opponent Rating Result
David P Jones 1398 0 - 1
David P Jones 1398 0 - 1
Tony R Larner 1514 0 - 1
Tony R Larner 1514 1 - 0
Edward Hackford 1592 1 - 0
Edward Hackford 1555 0 - 1
Alan F Page 1810 0 - 1
Adam Blackbourn 1873 1 - 0
Adam Blackbourn 1873 1 - 0
Chris Perkins 1597 0 - 1
Alan F Page 1816 0 - 1
Robin Blackwell 1891 0 - 1
Robin Blackwell 1891 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1517 = (21722 + 400 * (4 - 9)) / 13)

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