Kristina participated at the 2015 Winter Deaflympics and competed in the women's giant slalom, slalom, downhill, Super-G and super combined events. She claimed her only Deaflympic medal which was a bronze medal in the women's slalom event at the 2015 Winter Deaflympics as the silver medal in the relevant criteria was claimed by her sister, Melissa Kock while the gold medal was clinched by Tereza Kmochová.