Event: Division 1

Opponent Rating Result
John Jenkins 1979 0 - 1
David J Horton 1933 ½ - ½
Robert Ashworth 1875 ½ - ½
Tristram De Piro 1970 ½ - ½
Alex Carey 1914 0 - 1
Harry Davison 1841 ½ - ½
Robert Ashworth 1905 0 - 1
Richard Freeman 1923 0 - 1
Jacob Edwards 1804 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1772 = (17144 + 400 * (1 - 4)) / 9)

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