With the win, Djokovic registered the best start to an ATP tour season since Ivan Lendl in 1986.
Djokovic has won 63 of 69 sets and four tournament titles in 2011 - including the Australian Open - and has unseated Roger Federer, the last man to beat him, for the No. 2 ranking.
Djokovic did not shine Friday, but the 85th-ranked Kavcic could not seriously threaten the Serb, who had one break in the first and three in the second set.
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