Event: Hillingdon Div 2

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Opponent Rating Result
Naavya Parikh 1710 0 - 1
Arthur Cann 1287 ½ - ½
Veer Gill 1430 0 - 1
Ludovic Powell 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

907 = (4427 + 400 * (0 - 2)) / 4)

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