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(CNN) -- World championship leader Lewis Hamilton dominated qualifying for the Canadian Grand Prix in Montreal to claim pole position for Sunday's race.

But the McLaren man had to produce a dramatic last lap to pip Robert Kubica in the BMW who had surprisingly posted the quickest time moments before in Saturday's session.

Hamilton, who had been on pole prior to Kubica's late charge, certainly reserved his best for last with a stunning one minute 17.886 seconds to be over a half a second clear of the field.

"At the end I had two laps," Hamilton told the Associated Press.

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