Event: Cambs Division 1

Opponent Rating Result
Andrew J Chapman 1917 ½ - ½
Peter N Walker 1960 ½ - ½
Raymond J Ilett 1929 0 - 1
Richard HK Mann 1776 1 - 0
Paul Hanks 1855 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1967 = (9437 + 400 * (2 - 1)) / 5)

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