What happened: Stephon Castle followed his Rookie of the Year season by helping San Antonio reach the 2026 NBA Finals in Year 2. His rapid ascent became one of the Spurs’ defining developments of the season.
Why it matters: The postseason run established Castle as a central part of San Antonio’s young core. His growth will shape the Spurs’ effort to return to the Finals in 2026-27.
By the numbers: Castle averaged 14.6 points, 5.4 rebounds and 4.2 assists over five games in the 2026 NBA Finals. He also became the youngest player in NBA history with at least 300 points and 100 assists in one postseason.
What to watch: Castle’s role and year-over-year development will be key storylines when San Antonio opens the 2026-27 season.