Event: Cambs Division 1

Opponent Rating Result
Peter N Walker 2005 0 - 1
Peter AJ Brown 1998 ½ - ½
Andrew J Chapman 1945 ½ - ½
Andrew J Chapman 1945 ½ - ½
Paul Hanks 1863 ½ - ½
Raymond J Ilett 1938 1 - 0
Alexander Richards 1765 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1980 = (13459 + 400 * (2 - 1)) / 7)

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