OBERHOF, Germany -- Kikkan Randall of the United States claimed her second cross-country World Cup victory of the season when she won the prologue event of the Tour de Ski on Saturday.
Randall clinched the 3.1-kilometer sprint by leaving Charlotte Kalla of Sweden 4.4 seconds behind. World Cup leader Justyna Kowalczyk of Poland was third.
The tour consists of seven events over nine days in Germany, Switzerland and Italy.
Randall finished last season's series in 10th place and was second in the sprint prologue.
Petter Northug of Norway won the men's 4-kilometer prologue to stretch his World Cup lead. Northug beat Marcus Hellner of Sweden by 6.1 seconds, while Alexander Legkov of Russia was 7.2 seconds behind. Three-time tour winner Dario Cologna of Switzerland was fourth.