Stephon Javonte Castle (born November 1, 2004) is an American professional basketball player for the San Antonio Spurs of the National Basketball Association (NBA). He played college basketball for the UConn Huskies, winning a national championship in 2024.
๐ High School Career
Castle grew up in Covington, Georgia, and attended Newton High School. As a sophomore, he helped the Rams reach the 7A state quarterfinals, averaging 13.8 points, 5.2 rebounds, 3.8 assists, and 2.3 steals per game while shooting 41% from 3.
He averaged 16.6 points, 6.5 rebounds, and 3.2 assists per game as a junior. 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. Castle was selected to play in the 2023 McDonald’s All-American Boys Game during his senior year.
โญ Recruiting and College
Castle was initially rated a four-star recruit by most recruiting services. On November 19, 2021, he committed to playing college basketball for UConn during his junior year over offers from Auburn, Arkansas, Georgia, Georgia Tech, and Ohio State. By the end of his senior year Castle had been re-rated as a five-star recruit.
Castle enrolled at UConn in June 2023. He helped lead the UConn Huskies to win the 2024 NCAA national championship. He declared for the 2024 NBA draft on April 19, 2024.
๐ NBA Draft and Rookie Season
On June 26, 2024, Castle was selected with the fourth overall pick by the San Antonio Spurs in the 2024 NBA draft and on July 2, he signed with the Spurs. He made his NBA Summer League debut on July 6, putting up 12 points, six rebounds, and three assists in a 97โ65 loss to the Charlotte Hornets.
On February 4, 2025, Castle was named Western Conference Rookie of the Month for January 2025. On February 7, Castle put up a career-high 33 points in a 117โ116 loss to the Charlotte Hornets. On February 17, Castle participated in the 2025 AT&T Slam Dunk Contest but lost in the final round to Mac McClung.
At the beginning of April, Castle was named Western Conference Rookie of the Month for March 2025. On April 29, he was announced the winner for the NBA Rookie of the Year award. On May 20, Castle was selected to the NBA All-Rookie First Team.
๐ Triple-Doubles and Playoff Performance
On November 12, 2025, Castle recorded his first career triple-double with 23 points, 10 rebounds, and 10 assists in the Spursโ 125โ120 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.
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 138โ125 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.
On March 12, Castle put up his third career triple-double with 30 points, 11 rebounds, and 10 assists in a 136โ131 loss to the Denver Nuggets. On March 28, Castle recorded his fourth career triple-double with 22 points, 10 rebounds, and 10 assists in a 127โ95 win over the Milwaukee Bucks.
On April 24, in Game 3 of the Western Conference First Round against the Portland Trail Blazers, Castle put up 33 points and five assists in a 120โ108 win. His teammate Dylan Harper put up 27 points, as they joined Kevin Durant and Russell Westbrook as the only duos to each put up 25 points in the same playoff game at 21 years old or younger in NBA history.
๐บ๐ธ International and Personal Life
Castle played for the United States under-18 basketball team at the 2022 FIBA Under-18 Americas Championship. He averaged 5.5 points and 2.2 rebounds per game as the United States won the gold medal.
Castle is the son of Quannette and Stacey Castle. He has a younger sister, Staci, and an older brother, Quenton. Castle’s father, Stacey, was a teammate with NBA Hall of Famer Tim Duncan at Wake Forest University during the 1993โ94 season.
| Category | Detail | Year | Source |
|---|---|---|---|
| Birth | Born November 1, 2004 | 2004 | Text |
| High School | Newton High School, Covington, Georgia | 2023 | Text |
| College | UConn Huskies, 2024 national champion | 2024 | Text |
| NBA Draft | 4th overall pick by San Antonio Spurs | 2024 | Text |
| Rookie of the Year | NBA Rookie of the Year for 2024โ25 season | 2025 | Text |
| First Triple-Double | 23 points, 10 rebounds, 10 assists vs. Warriors | 2025 | Text |
| Career-High Points | 40 points in a triple-double vs. Mavericks | 2026 | Text |
| Playoff Game | 33 points and 5 assists vs. Trail Blazers | 2026 | Text |
| International | Gold medal at 2022 FIBA U18 Americas | 2022 | Text |
| Father | Stacey Castle, teammate of Tim Duncan at Wake Forest | 1993โ94 | Text |
| NBA Finals | Reached NBA Finals with Spurs | 2026 | Text |
| All-Rookie Team | NBA All-Rookie First Team | 2025 | Text |