Schafzahl began her collegiate career with the Vermont Catamounts during the 2018–19 season. During her freshman year, she recorded seven goals and 10 assists in 36 games. She led all Catamounts rookies in points, and ranked tied for second-most on the team with 17.[1] During the 2019–20 season in her sophomore year, she recorded 14 goals and 15 assists in 36 games. She led the team in goals and tied for the team lead with 29 points. During the 2020–21 season in her junior year, she recorded four goals and four assists in a season that was shortened due to the COVID-19 pandemic. She tied for the team lead with four goals.[1]
During the 2021–22 season in her senior year, she recorded 25 goals and 21 assists in 29 games. She set the Vermont single season record for points (46) and goals (25).[1] On 9 October 2022, she recorded two goals and became the program's all-time career leader in points with 106.[2] She was named the Hockey East Player of the Month and the HCA National Player of the Month for the month of January. She led the NCAA with nine goals and 17 points in nine games during the month. She recorded at least one point in all nine games and had six multiple point games.[3][4] Following an outstanding season she was named a unanimous First Team All Hockey East selection, Hockey East Scoring Champion, Hockey East Player of the Year, and PNC Bank Three Stars Award winner.[5] She was also named a CCM/AHCA Hockey First Team All-American and a top-ten finalist for the Patty Kazmaier Award, becoming the first player in program history to be named a finalist for the award.[6][7]
During the 2022–23 season, as a graduate student, she recorded 21 goals and 24 assists in 36 games. She led the team in scoring with 45 points and tied the Vermont single season record for assists (24).[8] Following the season she was named a First Team All Hockey East selection.[9] She finished her career at Vermont as the program's all-time leader in goals (71), assists (74), and points (145).[10]
Professional career
On 12 May 2023, Schafzahl signed a two-year contract with the Montreal Force of the Premier Hockey Federation (PHF).[11] The PHF ceased operations on 29 June 2023, as a result she never played a game for the Force.[12]
On 18 September 2023, Schafzahl was drafted 39th overall by PWHL Boston in the 2023 PWHL Draft.[13] On 1 November 2023, she signed a two-year contract with Boston.[14]