[1] As a junior, he averaged 19.7 points, 11.2 rebounds and 3.7 blocks per game to help the Bulldogs reach the VISAA state tournament.

[2] During the 2019 Nike EYBL, Williams averaged 14.8 points, 8.9 rebounds and 2.1 blocks per game, while shooting 63.8% from the floor.

[7][8] On November 1, 2019, he committed to playing college basketball for Duke University, choosing the Blue Devils over Michigan and UCLA after taking official visits to all three schools.

[3] Williams chose Duke in large part due to the possibility for a national championship, and said he wanted to pattern his game after Wendell Carter Jr.[9] Sources: Before the start of the season, Williams was named to the Kareem Abdul-Jabbar Award preseason watch list.

[13] On March 10, 2021, Williams recorded another double-double of 23 points and 19 rebounds in a 70–56 victory against Louisville in the second round of the ACC tournament.

[15] Williams earned All-ACC Tournament second-team honors after averaging 18.0 points and 10.0 rebounds per game.

Williams also had a shooting percentage of .721, which ranked the second best in Duke history and was the only player in the country 700+ from both the floor and free throw line.

[29] On February 6, 2025, Williams was traded to the Los Angeles Lakers in exchange for Dalton Knecht and Cam Reddish.