Stephanie Case is a professional trail and ultrarunner known for competing in some of the world’s most demanding and iconic mountain races, including the Ultra Trail du Mont Blanc (UTMB), Hardrock Hundred, Tor des Geants and Tor des Glaciers. Originally from Canada but based in Chamonix, France, Stephanie has consistently performed at a high level for almost 20 years.

In 2025, just six months after having a baby, Stephanie made global headlines when she won the Ultra Trail Snowdonia by UTMB 100km race while breastfeeding her daughter at checkpoints. Having been out of the sport for almost three years due to pregnancy loss and IVF, Stephanie proved to women everywhere that you don’t have to give up your passions and dreams when becoming a mother. She has continued to break barriers and shatter taboos in the sport, signing her first professional athlete contract as a new mom at the age of 43.

Alongside racing, Stephanie plays an active role in shaping the future of trail running. She serves on the Board of Directors of the Hardrock Hundred, leading their committee on diversity, equity and inclusion and contributing to the stewardship of one of the sport’s most storied races. She also advises the Professional Trail Runners Association Women’s Equality Working Group, supporting efforts to improve representation, policy, and equity across professional trail running.

Stephanie is also a regular commentator and on-air contributor for UTMB events, where she brings athlete insight, historical context, and a focus on women’s racing to global audiences.

Her racing and advocacy are closely linked: trail running is not only a competitive pursuit, but a platform for visibility, fairness, and long-term participation in a sport still negotiating gender equity at the elite level.

Stephanie currently runs for The North Face, Suunto, SunGod and Leki. If you are interested in a partnership, please get in contact!