This chart shows the difference between a player's regular FG% within 6 feet of the basket versus field goal % allowed... which I feel like is a pretty good indication and makes up for the fact that some players get harder asignments than others... its about what you're holding players to compared to their average against everyone else.
Things that stick out here. Opponents are scoring about 12% less than their average when guarded by Stewart within 6 feet of the basket. Players are scoring about 11% lower within 6 feet when contested by Ivey. Players are about 6% less when defended by Ausar.
On the flip side, players score about 7% better inside six feet when contested by Killian Hayes. Cade contests the most FGAs within 6 feet, and opponents score at about a 5% higher than their average FG% against Cade.