Stephanie Case doesn’t like the cold.Stephanie Case is attempting a record run in Antarctica.In downward katabatic winds that will make it difficult to breathe, and in temperatures likely to linger at around -25C (-13F), the 43-year-old ultramarathon runner will this November attempt to set a 100-mile speed record on the coldest continent on Earth.“I’ve run in extreme environments before but Antarctica is on another level,” the Canadian human rights lawyer told The Athletic. “I genuinely hate the cold, so this is not a case of playing to my strengths.”No woman has previously entered The Antarctic Ice Ultra, a looped circuit around a base camp at the Schirmacher Oasis, in Queen Maud Land, East Antarctica, which is around 330ft above sea level. Case wants to be the first woman to take part, and break the overall race record in the process.The outright course record of 22 hours, 40 minutes and 47 seconds was set by Chinese runner Yusheng Ni in 2025.“Antarctica used to be called ‘the womanless continent’. This 100-mile race has only ever been attempted by men,” said Case.“There is no women’s record because no woman has run it. I want to change that, not to beat anyone, but to make sure women are on the map. To put a mark down that says, ‘We were here, we did this, and we did it while being very much not quiet’.“And I want to come home and tell my daughter that her mom got a world record.”Last May, Case went viral when breastfeeding her then-six-month-old daughter, Pepper, during an ultramarathon that she won. She had stopped to eat a watermelon and feed her baby when competing in the 60-mile Ultra-Trail Snowdonia in Wales, her first race after a three-year hiatus.