- 3.1 Individual
- 3.2 double
At the age of nine years, Feuerstein began playing tennis. In 2005, she became a professional player. Since then she has won on level nine ITF singles titles and two doubles.
In 2009, she reached the final of the WTA tournament in Strasbourg on the side of Stephanie Foretz Gacon. In 2012 she was in the singles at the French Open in the second round and was eliminated there against Nina Brattschikowa.