In 2008–09, she played with the Lac St. Louis Selects, and helped them accumulate a 62–0–2 record. Daoust was a Montreal Canadiens scholarship holder in 2010 from the Quebec Foundation for Athletic Excellence. With the Collège Édouard-Montpetit Lynx, she helped lead them to a Quebec collegiate championship in 2009–10. In addition, she won the league scoring title with 24 goals, 31 assists for 55 total points. She accomplished this in only 13 games played. In participating with the Canada women's national under-18 ice hockey team, Daoust registered 10 goals and 23 points in 13 games. At the 2010 IIHF world U-18 championships, she scored a goal and adding an assist in the gold medal game. The following day, she flew back to Montreal to help the Lynx capture the collegiate championship. She scored twice and added an assist in the championship game, including the game-winner in a 6–5 win versus Dragons du Collège Laflèche. She had helped the Lynx accumulate a won-loss record of 44 wins, compared to 3 losses.
CWHL
She was called up as an emergency fill-in with the Montreal Stars, and scored three points in her CWHL debut on January 8.
CIS
On February 10, 2011, Daoust signed a letter of intent to play for the McGill Martlets women's ice hockey program. She refused offers from numerous Canadian and American universities, including Cornell, Dartmouth and a full scholarship from Boston University. Daoust was only one of five female student-athletes committed to McGill University in the fall of 2011 that were athletic scholarship recipients. In the aftermath of the 2012–13 season, Daoust was named to the CIS First Team All-Canadians. Among the other players named as First Team All-Canadians were Katelyn Gosling and Hayley Wickenheiser.
Hockey Canada
Daoust was part of Canada women's national under-18 ice hockey team that won a gold medal at the 2010 IIHF World Women's Under-18 Championship in Chicago. As a member of the gold medal winning squad, a hockey card of her was featured in the Upper Deck 2010 World of Sports card series. In addition, she participated in the Canada Celebrates Event on June 30 in Edmonton, Alberta which recognized the Canadian Olympic and World hockey champions from the 2009–10 season. On October 3, 2011, she was named to the Team Canada roster that participated in the 2011 4 Nations Cup. She scored her first international goal on February 17 at the 2014 Sochi Olympics against Switzerland and they won the gold medal.
