Ginther started skiing at the age of four and was Austrian student champion in giant slalom in 1983 and 1985 in their respective age groups. After their inclusion in the squad of the Austrian Ski Federation (ÖSV) celebrated their participation in the Junior World Championships , the first major international success: they won in 1987 in Hemsedal the combination and was second in the downhill, arrived in 1988 in Madonna di Campiglio first three places in Super-G, giant slalom and combined, as well as a second place in the downhill and won in 1989 in Aleyska another two gold medals in downhill and super-G. At the same time she was working her way up to the top in the European Cup , won the overall and downhill classification in the 1988/89 season and came second in the giant slalom classification. In addition, she was two-time Austrian youth champion in downhill and combined in 1989.
Ginther made her debut in the World Cup on November 26, 1988 in the Super-G on the Schladminger Planai , where she finished 14th with start number 50 and won her first World Cup points straight away. From then on she was regularly used in the World Cup, played her first full World Cup season in 1989/90 and made it into the top 10 for the first time on January 28, 1990 as tenth of the giant slalom in Santa Caterina . Her breakthrough to the top of the world came in the 1990/91 season when she was third in the combination of Morzine and two weeks later in both downhill and combined in Bad Kleinkirchheim . Ginther was one of the great hopes for a medal in Austria at the 1991 World Cup in Saalbach-Hinterglemm , but remained without precious metal. She took sixth place in the downhill and was eliminated in the second round of the combination slalom after she had won the combination downhill. In the World Cup, she celebrated her first victories after the World Championships, when she won two downhill runs in Lake Louise and Vail in March 1991 , which brought her to second place in both the overall World Cup and the Downhill World Cup.
Four more World Cup victories were added in the 1991/92 season : Ginther won slalom and combined in Schruns in mid-January and downhill and combined in Grindelwald in early February . Shortly thereafter, however, she had a hard fall in training for the departure of the 1992 Winter Olympics , where she broke her second lumbar vertebra and suffered severe knee injuries. After the compulsory break, Ginther initially did not achieve any further top results in the next winter of 1992/93 until she was third on the podium on January 22, 1993 on the downhill run from Haus im Ennstal . After another injury in the run-up to the 1993 World Cup , she announced her retirement from top-class sport a little later at the age of 23. Ginther completed the state ski instructor training, married the ski trainer Thomas Schädle and became a mother of two.