Event: Derby & District Division 1

Opponent Rating Result
Andy Townsend 1892 1 - 0
John M Potter 2153 ½ - ½
Peter Ackley 2030 0 - 1
John Molyneux 2136 ½ - ½
Anthony L Natt 1896 ½ - ½
Daniel Blumenow 1820 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1921 = (11927 + 400 * (1 - 2)) / 6)

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