Gasser began training at the age of seven, originally in Lustenau. She qualified for the Vorarlberg regional team and began to train at the Vorarlberg Regional Gymnastics Training Centre in Dornbirn. Her trainer was Christine Frauenknecht. In 2010, Frauenknecht was named as the Austrian Junior Coach of the Year. Gasser won several junior gymnastics competitions, and was the junior regional champion in 2001. In 2002, she qualified to be part of the Austrian junior squad which competed in the European Junior Championships in Patras. In 2003, she was the Austrian Junior All-around champion. That year, she also won her first senior title, a regional title in the vault. That was also the year that her family moved to Canada.
Move to Canada and Early Senior Career
The family moved to Canada as her grandfather had lived there for many years. In Canada, she intensified her training, and trained twice a day at the Bluewater Gymnastics Club under trainers Dave and Liz Brubaker. As she retained her Austrian citizenship, she continued to compete for Austria, travelling to compete in her old home country. She was part of the Austrian team at the European Youth Olympic festival in 2004. Gasser finished high school in 2007. In 2008, she won her first senior national all-around title, but many injuries followed. A knee reconstruction did not solve these problems and there followed further knee injuries, and associated ligament injuries. She made her comeback at the 2010 Austrian National Championships, where she won the all-around, the vault and the uneven bars.
World Championships and Olympics
At the 2011 World Championships in Tokyo, Gasser's results earned the highest ranked Austrian gymnast a place at the 2012 Olympic Test Event. She was the highest ranked Austrian gymnast and competed at the Test Event where she achieved Olympic qualification. This was a historic success for an Austrian gymnast, as Gasser was the first female Austrian gymnast to qualify for an Olympic Games since Henriette Parzer qualified for the 1964 Tokyo Olympics. Gasser's strongest event is the uneven bars. It was on this apparatus that she won silver at the 2010 World Cup event in Osijek. In this event she finished in eleventh in the 2011 overall World Cup, improving to seventh in 2012. At the 2012 Olympics, she was joined by another member of the Vorarlberg Gymnastics squad, Caroline Weber. In the individual all-around event at the 2012 Olympics, Gasser suffered a fall from the beam, and therefore finished in 46th place.
