Shiffrin, in her 14th win of the winter, edged out Norway's Thea Louise Stjernesund and Canada's Valérie Grenier.
"I feel good. It's unbelievable. We fought with the girls on this second run. I hope to come back next year and do as well. I'm going to go back to the United States, go to the beach a little, I hope you come!" she said, hilariously, at the microphone of the International Ski Federation (FIS) held by her fellow skier Aleksander Aamodt Kilde.
The 28-year-old is finishing an anthology season that saw her surpass the World Cup victory records of her compatriot Lindsey Vonn (82) and Sweden's Ingemar Stenmark (86), a historic brand in alpine skiing.
Shiffrin relegated the competition away to win the overall World Cup standings for the 5th time (after 2017, 2018, 2019 and 2022) with 2,206 points, the second best total of all time behind Slovenia's Tina Maze's record (2,414 points in 2013).
The American, winner of the small globes of the slalom and the giant, was also crowned world champion of the giant in February in Meribel, in addition to two silver medals (super-G and slalom).
In passing, she became Sunday the most victorious skier in the history of the world circuit in giant (21 successes), ahead of the Swiss Vreni Schneider (20).
Back at the top after a few years a little less easy, she seems limitless and could amass in the years to come a unique record.
For the last race of the season, Tessa Worley took 11th place and Coralie Frasse-Sombet 16th.
Frasse-Sombet, who has made 86 World Cup starts in just over a decade, has announced she is retiring at 31.
© 2023 AFP