Tatum Grosdidier joined the Stifel U.S. Alpine Ski Team for her first season with the national team in the 2023-24 year. She first learned to ski at the young age of two at Mission Ridge in Washington.

Grosdidier has already had a great career at such a young age. Some of her biggest accomplishments in her young career including qualifying for World Juniors and winning the junior slalom title in 2022.

Grosdidier had a great first year with the Stifel U.S. Ski Team. She secured third place at the U.S. National Championships super-G, a NorAm win, and two other podiums in slalom and super-G. 

In the 2024-25 season Grosdidier continued to show strong skiing across all disciplines. Some of her top performances included a third place in the NorAm super-G in Kimberley, CAN. In the 2025-26 season Grosdidier had a consistent year, posting multiple top-10 and top-five finishes in the NorAm Cup circuit. Her top results of the season were a pair of fourth-place finishes in giant slalom at the Bromont, Canada series. 

When she isn’t speeding down a mountain, you can find Grosdidier running, hiking or playing spikeball.