Assist Rate is the estimated percentage of team field goals that a player assisted when they were on the court. It measures how much of a team's made-basket production a player had a direct hand in setting up while they were on the floor.
AST% varies a lot by position, so "good" depends on who you're comparing against. Anything above the average for a player's own position is a reasonable bar. Minutes-weighted averages, 2025-26 season, min. 20 GP.
Top 5 in the NBA this season, min. 20 games played.
AST% varies quite a bit between positions. Minutes-weighted averages this season: PG 27.1%, SG 15.0%, SF 14.6%, PF 12.7%, C 12.4%. Anything above the average for a player's own position is a reasonable bar for "good."
No. Assist percentage is not a tell-all stat for playmaking. It doesn't quantify other ways a player creates offense, like gravity from off-ball shooting or the advantages created by a drive that ends in a pass two steps removed from the assist itself.
AST% is measured against opportunity, not just the raw assist count. A pass-first guard who plays heavy minutes and touches the ball on almost every possession has far more chances to rack up assists relative to their team's made baskets than a high-usage scorer who spends most of their possessions shooting instead of passing, even if the scorer's raw assist total looks similar or higher.