GARMISCH-PARTENKIRCHEN, Germany — Lindsey Vonn of the United States won a World Cup slalom ahead of Maria Riesch to extend her overall lead in the standings.

The American had a blistering second run to move from third to first and post her second slalom win of the season. Vonn also won the opening slalom of the season in November in Levi, Finland.

Vonn won in a combined time of 1 minute, 47.17 seconds. Hometown favorite Riesch of Germany took second in 1:48.07. Marusa Ferk of Slovenia had her best career finish to take third.

Kathrin Zettel of Austria, who had a big lead from the first run, made a mistake on the second to finish well down the field.

Several top-ranked racers did not finish the first run, including Anja Paerson of Sweden, Nicole Gius of Italy, Sandra Gini of Switzerland and Monika Bergmann of Germany. Paerson straddled a gate, Gius clipped another and the others slipped off the course.

Hailey Duke of the United States, who was in eighth place after the first run, went off the course in the second.