Second career win for Anamarija Lampič
Lampič beat the Norwegian Maiken Caspersen Falla by just 0.03 seconds, with the Russian Natalia Nepryaeva coming in third.
The Lenzerheide sprint was the second event of the Tour de Ski series, the highlight of the World Cup season, which ends on 5 February.
Lampič's only previous World Cup victory came in February 2017.