She played college ice hockey at Vermont, where she is the program's all-time leader in goals, assists and points.

She led the team in scoring with 45 points and tied the Vermont single season record for assists (24).

[10] On 12 May 2023, Schafzahl signed a two-year contract with the Montreal Force of the Premier Hockey Federation (PHF).

[14] Schafzahl represented Austria at the 2016 Winter Youth Olympics in the girls' individual skills challenge and won a bronze medal.

She again represented Austria at the IIHF World Women's U18 Championship in 2016, 2017 and 2018, where she led the team in scoring each year.

[16] Schafzahl made her senior national team debut for Austria at the 2016 IIHF Women's World Championship Division I, where she recorded one goal in five games and won a bronze medal.