Event: Hillingdon Div 3

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Opponent Rating Result
Ivan Hauptman 0 0 - 1
Abu Hasan 1403 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

502 = (1403 + 400 * (0 - 1)) / 2)

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Opponent Rating Result
Gabriele Martellotta 1421 1 - 0
Ashley R Anderson 1094 1 - 0
Ivor Doherty 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

972 = (2515 + 400 * (2 - 1)) / 3)