Overview
- Late August reporting shows Castle has spent the offseason on high-volume jump-shot work, posting workout video footage and describing a focus on rhythm and base.
- Castle improved from 28.5% from three as a rookie to 33.2% last season but remains below the typical league-average 3-point mark in the mid-30s.
- Trainer Olin Simplis says fatigue and inconsistent shot sequencing have caused timing errors and that their rep-by-rep emphasis targets energy transfer from the ground through the shot line to fix those mechanics.
- Analysts say lifting Castle’s 3-point percentage toward roughly 35–36% would turn him into a true three-level scorer and materially improve spacing for Victor Wembanyama and the Spurs’ offense, though that outcome is not guaranteed.
- Castle’s offseason work follows a Rookie of the Year season and a run to the 2026 NBA Finals and the public visibility of his training — including a light NBA 2K27 anecdote — makes his shooting progress a key thing to watch in preseason drills and early games.