Event: Hillingdon Div 3

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Opponent Rating Result
Surjit S Dhemrait 1614 ½ - ½
Abdul Hadi 1456 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1335 = (3070 + 400 * (0 - 1)) / 2)

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Opponent Rating Result
Edward Poynton 1543 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1143 = (1543 + 400 * (0 - 1)) / 1)