Berreiter went through the various international competition classes in luge sport. She made her debut in the Youth A World Cup in December 2015 on her home track in Königssee . In a five-fold German success she immediately reached the podium and only had to admit defeat to Tina Müller . After finishing ninth in Igls , she won the other two races of the season in Altenberg and Oberhof . In the following season 2016/17 she advanced to the Junior World Cup. In the first season in the age group, Berreiter was not able to fully match the previous year's performance. At the start of the season she was 16th in Igls, and fifth and sixth in the following two races of the season in Oberhof and Winterberg . In the overall ranking she came in 18th place. The race in Oberhof was also the European Junior Championships, where she also came in fifth.
Rider at the finish at the Junior World Championships 2018 in Altenberg
The 2017/18 season was much more successful. At the start of the season, Berreiter finished fifth in two races in Oberhof, in the following race in Königssee she finished second in the age group for the first time in the age group and thus on the podium, behind Jessica Tiebel . In third place, she repeated the podium positions in the fourth and fifth races in Igls. In her last race of the season in Winterberg, which also served as the European championship, Berreiter came in sixth. In the overall ranking of the World Cup, she came third behind Cheyenne Rosenthal and Lisa Schulte . At the Luge Junior World Championships 2018 in Altenberg, she missed the podium as a co-favorite for a medal in fifth place due to a weaker first run. In the second run, only Jessica Tiebel, who had the best time in both races, was faster than Berreiter on her home track. The last junior indoor season started very successfully. At the races in Park City , Berreiter not only won the two girls' races , but also won both races with the team relay alongside Moritz Bollmann and the doubles Hannes Orlamünder and Paul Gubitz . Then she finished second in Calgary behind Hannah Prock and won again with the team relay, this time with David Nössler instead of Bollmann. in St. Moritz Berreiter came third behind Verena Hofer and Elīna Vītola . It was also the Junior European Championships. In the team relay she won the title with Nössler, Orlamünder and Gubitz. At the last World Cup race in the age group, she was seventh in Winterberg. Behind the Russian Tatjana Zwetowa and Jessica Degenhardt she finished third in the overall ranking.
Beginnings in the World Cup
Berreiter at their first World Cup victory in Oberhof (2020)
After Tatjana Hüfner's resignation and the pregnancy- related absence of Natalie Geisenberger and Dajana Eitberger , the 2019/20 season saw a much earlier and more radical change in the German women's team than planned. In addition to the seeded Julia Taubitz , the young riders Jessica Tiebel, Cheyenne Rosenthal and Berreiter moved into the World Cup team. At the traditional season opener in Igls, she was able to achieve a single-digit position in her first race with seventh place and only missed the award ceremony by one place. The second race of the season in Lake Placid did not go quite as well . On the track, where young German riders rarely compete and therefore have little experience, she only achieved 17th place in the first run. With the eleventh fastest time in the second run, Berreiter was able to improve to 15th place and thus qualify for her first sprint race, in which she finished eleventh.
Before the third race of the season in Whistler , Berreiter had to qualify for the Nations Cup as a newcomer due to a lack of sufficient points as in the previous races. Here she won her first international race in the A-class and was able to outperform all of the more experienced North Americans here. In the following World Cup race, Berreiter took second place behind Tatiana Iwanowa after the first run and was able to defend it in a turbulent second run behind the Russian. Thus, in her third World Cup race, she already achieved a podium place and thus the world class. In the following sprint race, she confirmed her performance with a fifth place. She celebrated her first World Cup victory on February 2, 2020 at the World Cup in Oberhof. At the end of the season in Königssee, she won again. In her first World Cup season, she was fourth overall.