The San Antonio Spurs made a loud statement in NBA Cup play on Friday night, and Stephon Castle was right at the center of it. The third-year guard poured in a season-high 32 points to lead the Spurs to a 123-85 rout of the Golden State Warriors at Frost Bank Center.

Castle was nearly perfect from start to finish. He shot 12-of-18 from the field, including 5-of-8 from beyond the arc, and went 3-of-3 from the free-throw line. He also added six assists and five rebounds, finishing with a game-best plus-35 rating.

The performance easily topped his previous season high of 24 points, which he set in the season opener against the Oklahoma City Thunder.

The Spurs wasted no time taking control. San Antonio opened the game on an 18-0 run, its largest to start a game in the play-by-play era, and built a 38-14 lead after the first quarter. By halftime, the lead had ballooned to 30, with Castle already sitting on 18 points and four triples.

He also found Wembanyama for a lob that the big man finished with a reverse slam.

The 2026 NBA Defensive Player of the Year did a bit of everything, posting 12 points, 12 rebounds and six assists. Keldon Johnson chipped in 18 points off the bench, while Harrison Barnes added 11.

The Warriors, meanwhile, were shorthanded without Stephen Curry, who is sidelined with a torn oblique. Jimmy Butler III and Moses Moody were also out.

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Golden State shot just 33.3% from the field, with rookie Yaxel Lendeborg, who entered averaging 21.7 points per game, going 1-of-13 for three points. LJ Cryer led the way with 20 points on six 3-pointers.

With the victory, San Antonio stretched its winning streak to 11 games and improved to 11-2 on the season. The win also gave San Antonio a leg up in the NBA Cup’s Western Conference race, while Golden State dropped to 8-5 overall.

The Spurs will look to keep the streak alive when they visit the Utah Jazz on Sunday.