Ortlieb attended the Stams ski school and won a total of four Austrian student championship titles from 2009 to 2011. In December 2011, after reaching the age limit, she contested her first FIS races and took part in a European Cup race for the first time on January 16, 2013 on the downhill in St. Anton , where she was seventh in the top ten. At the end of February 2013 Ortlieb was part of the Austrian squad for the Junior World Championship in Québec . There she finished twelfth in the downhill after two failures in slalom and Super G. At the end of the season, she became Austrian youth champion in downhill in April 2013.
For the 2013/14 season she was accepted into the C-team of the Austrian Ski Association and has been regularly participating in the European Cup since this winter. On December 18, 2013, she achieved the first two podium finishes in this racing series, when she finished third in both Downhill and Super G in St. Moritz . On January 12, 2014 she made her debut in the World Cup in the Super Combined in Altenmarkt-Zauchensee , but was eliminated there in the Super G. On February 6, 2014, she suffered a cruciate ligament rupture during training and had to end the season prematurely.
In the following winter she was able to build on her old level of performance, achieved two more podium places in the European Cup and won the gold medal in the giant slalom at the Junior World Championships in Hafjell on March 7, 2015 . At the Junior World Championships in Sochi / Rosa Khutor she won the Super-G title in 2016. As a junior world champion, she was eligible to compete in the World Cup finals in St. Moritz ; There she got her first World Cup points as eleventh place in the Super-G. On the other hand, she was never able to rank among the points in the 2016/17 World Cup season, which is why she was increasingly used in the European Cup. In the winter of 2017/18 she won the overall ranking of the European Cup.
At the beginning of the 2019/20 season, Ortlieb finished fourth behind the Czech surprise winner Ester Ledecká at the World Cup downhill run in Lake Louise in December 2019 . After three further placements among the top ten during the winter, she achieved her first World Cup podium finish on February 22nd with third place in the downhill from Crans-Montana . A week later, she won her first World Cup race at the Super-G in La Thuile .
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