Event: Division 1

Opponent Rating Result
Jonathan Rubeck 1886 ½ - ½
Jan Lepetun 1861 ½ - ½
James M Robinson 1900 ½ - ½
Ayman Hammam 2097 0 - 1
Fredrik Ceder 1987 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1866 = (9731 + 400 * (0 - 1)) / 5)

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