Stephon Castle

Castle grew up in Covington, Georgia and attended Newton High School.^[1] He averaged 16.6 points, 6.5 rebounds and 3.2 assists per game as a junior.^[2] He finished his senior year averaging 20.1 points, 9.5 rebounds, 4.8 assists, three steals and two blocks per game to carry the Rams to the Class 7A state quarterfinals.^[3] Castle was selected to play in the 2023 McDonald's All-American Boys Game during his senior year.^[4]

Castle enrolled at UConn in June 2023.^[8] He helped lead the UConn Huskies to win the 2024 NCAA national championship. He declared for the 2024 NBA draft on April 19, 2024.^[9]

On June 26, 2024, Castle was selected with the fourth overall pick by the San Antonio Spurs in the 2024 NBA draft^[10] and on July 2, he signed with the Spurs.^[11] He made his NBA Summer League debut on July 6, putting up 12 points, six rebounds and three assists in a 97–65 loss to the Charlotte Hornets.^[12] Castle was named Western Conference Rookie of the Month for January 2025.^[13] On February 7, Castle put up a career-high 33 points in a 117–116 loss to the Charlotte Hornets.^[14] At the beginning of April, Castle was named Western Conference Rookie of the Month for March 2025.^[15] On April 29, 2025, he was announced the winner for the NBA Rookie of the Year award.^[16] Castle participated in the 2025 AT&T Slam Dunk Contest but lost in the final round to Mac McClung.^[17]

On November 12, 2025, Castle recorded his first career triple-double with 23 points, 10 rebounds, and 10 assists in the Spurs’ 125–120 loss to the Golden State Warriors. He and Victor Wembanyama became the first pair of teammates in Spurs history to record triple-doubles in the same game. They also became the fifth duo in NBA history to each produce a 20-point triple-double in a game.^[18] On February 7, 2026, Castle put up his second career triple-double with a career-high 40 points, alongside 12 rebounds and 12 assists, on 15-of-19 shooting from the field, in a 138–125 win over the Dallas Mavericks. With the performance, he became only the second player in Spurs franchise history after David Robinson to record a 40-point triple-double.^[19][20] On March 12, Castle put up his third career triple-double with 30 points, 11 rebounds, and 10 assists in a 136–131 loss to the Denver Nuggets.^[21][22]

Castle played for the United States under-18 basketball team at the 2022 FIBA Under-18 Americas Championship.^[23] He averaged 5.5 points and 2.2 rebounds per game as the United States won the gold medal.^[24]

Castle is the son of Quannette and Stacey Castle. He has a younger sister, Staci, and an older brother, Quenton.^[25] Castle's father, Stacey, was a teammate with NBA Hall of Famer Tim Duncan at Wake Forest during the 1993–94 season.^[26]