Event: Cambs Division 1

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Opponent Rating Result
Raymond J Ilett 1928 ½ - ½
Andrew J Chapman 1957 ½ - ½
Raymond J Ilett 1928 0 - 1
Andrew J Chapman 1957 1 - 0
Chris Tandy 2071 ½ - ½
Marek Zajaczkowski 1585 ½ - ½
Raymon Gompelman 1835 0 - 1
Peter N Walker 2018 1 - 0
Michael Dunkley 1868 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1905 = (17147 + 400 * (2 - 2)) / 9)

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