Grassick joined the
University of Saskatchewan Huskies in 2020, though her first season with the team was cancelled due to the
COVID-19 pandemic.
2021–22 season Grassick was part of the Huskies team which won the
Canada West championship in the 2021–22 season, beating the
Winnipeg Wesmen 68-59.
2024–25 season On November 12, 2024, in the Huskies' season opener, Grassick became the first Saskatchewan-born woman in U Sports history to record a
triple double. In the 2024–25 season she set the single-season program record for assists (120). On March 16, 2025, Grassick played in the Huskies' 85-66 victory over the Carleton Ravens in the
2025 championship final, as she led the team with 35 points. Her individual performance earned particular praise, and she was named the championship MVP. Describing the spirit of her championship-winning team, she said “We’re just so capable. We push each other and support each other, and that’s what makes the difference. It’s a team of athletes who want to make an impact not only in the national game, but in our communities too.” On March 12, 2025, Grassick won the Nan Copp trophy, being named as the 2025 U Sports Women's Basketball player of the season, the third Huskie in program history to win the award. In June 2025, Grassick was named as the winner of the
Lois and Doug Mitchell Athlete of the Year award, the highest achievement for an athlete in
U Sports, becoming the first woman athlete from the
University of Saskatchewan to be named as the best athlete from across U Sports for the year.
2025–26 season Grassick was part of the team which achieved a perfect 2025–26 regular season, their second in program history (the other being the 1971–72 season), on February 7, 2026, following a 84-54 win over the Winnipeg Wesmen which also extended the Huskies overall win streak to 50 games. She averaged 15.8 points and 5.4 assists per game during the regular season, earning her a third-consecutive selection to the Canada West All-Star first team. She was ranked 6th overall in Canada West for points scored during the regular season. She was part of the team which lost 61-58 to the
Calgary Dinos in the Canada West playoff semifinal on February 21, 2026, which marked the end of the Huskies' stretch of 51 consecutive wins. She was named the Canada West women’s basketball player of the year for the second consecutive season, becoming the second player in Huskies history to attain the achievement, after Sarah Crooks. The Huskies qualified for the
2026 national championship as the wild card entry, with Grassick playing in the semifinal as the Huskies defeated the
Laval Rouge et Or by 55-43 to advance to the 2026 championship final. Grassick scored 16 points in the final as the Huskies beat
University of New Brunswick Reds by 77-68 to win their second consecutive national championship in what was Grassick's final game for the team. Grassick was named as a 2026 tournament all-star. She won the University of Saskatchewan's Mary Ethel Cartwright Trophy (Female Athlete of the Year award) for the second year in a row, becoming the ninth athlete in the university's history to win the award twice, as well as winning that season's Valerie Girsberger Trophy (Female All-Around Athlete award). Grassick finished her university career holding the Huskies' program record for steals (290) as well as being ranked in the top six in games played (114), points (1,572), assists (486), rebounds (643), as well as minutes played (3,457). Speaking after her final game with the team in the 2026 national final, Grassick said she was considering coaching following her playing career, and that her time with the Huskies "shaped who I am today. It's shaped what I want to do in the community. It shaped what I want to do in the future and how I want to uphold myself". == International career ==