[3] Feltscher was the third of the Swiss team skipped by Mirjam Ott at the 2006 Winter Olympics, where she won a silver medal.

Team Ott represented Switzerland at the 2005 World Women's Curling Championship and finished eighth with a 4–7 record.

The 2013–14 season was a breakthrough year for Feltscher and teammates Irene Schori, Franziska Kaufmann and Christine Urech.

At the start of the season, they won the 2013 Red Deer Curling Classic and made the playoffs of the Stockholm Ladies Cup and the Women's Masters Basel.

[7] The following season, Team Feltscher won the 2014 European Curling Championships by defeating Anna Sidorova in the final.

They finished the round robin of the 2016 World Women's Curling Championship once again with a 9–2 but this time in first place, giving them hammer and choice of stones in the 1 vs 2 game.

Up 7–6 in the last end, they forced Fujisawa to draw for one to tie the game but she was to heavy, giving Feltscher and her team their second World Women's Curling Championship gold medal and title.

[11] At the conclusion of the 2017–18 season, Irene Schori and Franziska Kaufmann left the team and were replaced by Stefanie Berset and Larissa Hari.