He played college basketball for the Indian Hills Warriors, Kansas Jayhawks, DePaul Blue Demons, and Grand Canyon Antelopes.
He played sparingly in the 2020–21 season, prompting him to enter the transfer portal, ending up at DePaul University.
[1] Finding his options limited due to his health scare, Grant-Foster signed with coach Bryce Drew at Grand Canyon after receiving a recommendation from his cousin, Ish Wainright.
[2][3] Based on a strong start to the season for the Antelopes and Grant-Foster, he was named to the Lou Henson Award watchlist.
[4] Grant-Foster would also lead the team in scoring with 22 points in Grand Canyon's first ever NCAA tournament win, upsetting the #5 seed and #15 ranked St. Mary's Gaels 75–66 on March 22, 2024.