Miller played college ice hockey with the St. Lawrence Saints women's ice hockey program in the ECAC Hockeyconference of the NCAA Division I from the 2014–15 season to the 2017–18 season.[3] As a junior in the 2016–17 season, she ranked sixth in the country with 0.92 assists per game and eleventh nationally with 1.33 points per game, tallying 15 goals and 33 assists for 48 points in 36 games, and was recognized as the ECAC Player of the Month on 2 February.[4] She was selected as team captain for the 2017–18 season via player vote and, in her senior season, was the ECAC Player of the Week for October 11.[5] Miller was named to the Second-Team All-ECAC Hockey in 2016–17 and 2017–18 and earned ECAC Hockey All-Academic honors in 2017–18.
Professional
After reaching out and expressing interest in playing with the China-based Canadian Women's Hockey League (CWHL) team, Miller was drafted in the third round, fifteenth overall in the 2018 CWHL Draft by the Shenzhen KRS Vanke Rays.[6][7] She signed with the team for the 2018–19 CWHL season and finished her first professional ice hockey season tied with Emma Woods for second on the team with 10 goals and ranked fifth with 15 points in 20 games.
Following the collapse of the CWHL in 2019, Miller remained with the KRS Vanke Rays as they became the first non-Russian team to join the Zhenskaya Hockey League (ZhHL). In the 2019–20 ZhHL season, she scored 12 goals and 13 assists for 25 points in 24 games, ranking second on the team for goals and fourth for assists, and won the 2020 Russian Championship.[8]
Miller was drafted in the 13th round, 74th overall, by PWHL Toronto in the 2023 PWHL draft.[9] She signed a one-year contract in November 2023.[10] During the 2023–24 season, she recorded seven goals and seven assists in 23 regular season games and one goal and two assists in five games during the Walter Cup. On June 21, 2024, she signed a one-year contract extension with Toronto.[11]
Miller was officially named to the Chinese women's national team roster for the women's ice hockey tournament at the 2022 Winter Olympics on 28 January 2022. She scored China's first goal of the tournament, in the opening game of the preliminary round against the Czech Republic.[12]