She has competed for Team Switzerland at the 2019 World Para Athletics Championships where she won a gold and a silver medal.

[3] While attending a sports camp in Nottwil, she met her future trainer and coach Paul Odermatt.

[5] Debrunner competed in the T53 200 metres at the 2015 IPC Athletics World Championships, where she earned a silver medal with a time of 30.64.

[8] Debrunner subsequently took a break from sports to focus on her education before returning to Team Switzerland for the 2019 World Para Athletics Championships.

The Australian Madison de Rozario came second and the American Susannah Scaroni had the bronze medal.