[5][6][4] She then attended Stanford University (Class of 2014, majoring in Science, Technology and Society), and with the water polo team winning three NCAA championships.

[1][7] As a freshman in 2012, playing for the Stanford Cardinal water polo team at the 2-meter position, Grossman was Association of College Water Polo Coaches (ACWPC) All-America Honorable Mention, ACWPC All-Academic - Excellent, All-Mountain Pacific Sports Federation (MPSF) Honorable Mention, and named to the MPSF All-Newcomer Team.

[1][2] In 2014, with Team USA she won a silver medal at the FINA Women's Water Polo Intercontinental Tournament.

[1][2] Grossman competed as a member of the United States women's national water polo team, for both the U.S.

[9][1][2][8] She played for Team USA in the 2015 FINA Women's Water Polo World League as it won a gold medal in June 2015, and the 2015 Pan American Games against Argentina, Cuba, and Mexico as Team USA won a gold medal in water polo at the 2015 Pan American Games in July 2015.