At the 2016 FIL World Luge Championships at Königssee, Kocher took the gold medal in the sprint and the silver in the full length singles event. At the following year's World Championships at Innsbruck, she finished second in the sprint. The latter result was considered a surprise as the short track at Innsbruck was not considered to suit Kocher, who was by far the lightest luger in top-level competition during her career. Her best finish at the FIL European Luge Championships was eighth in the women's singles event at Sigulda in 2010. Despite her World Championship success, she never achieved a Luge World Cup podium: her best World Cup result was a fourth place in Königssee in January 2018.