The four-time overall World Cup champion, who recently took three weeks off to regain her strength following an intestinal problem, clocked 1 minute, 38.25 seconds down the Olympia delle Tofane course. Current overall leader Tina Maze of Slovenia finished second, 0.43 seconds behind, and Vonn's American teammate Leanne Smith was third, 0.89 back.
It was Vonn's seventh win in Cortina and the 58th of her career, moving her within four of the all-time record held by Austrian great Annemarie Moser-Proell.
Vonn's last win was a super-G in St. Moritz, Switzerland, on Dec. 8.
Racing continues in Cortina with a super-G Sunday.
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