Feltscher began curling in 1989 and started skipping in 2007. Feltscher was the third of the Swiss team skipped by Mirjam Ott at the 2006 Winter Olympics, where she won a silver medal. With Ott, Feltscher won silver medals at the European Curling Championships in 2004 and 2005 and a bronze in 2006. Team Ott represented Switzerland at the 2005 World Women's Curling Championship and finished eighth with a 4–7 record. Feltscher left the Ott rink in 2007 to form her own team. She won another silver medal at the European Championships in 2009. Her second trip to the World Championships was in 2010 where she skipped the Swiss rink to a 3–8 record.