SL Game 5: Dallas Mavericks vs. NY Knicks | 7:30PM CST | PRIME

[Mavs2021]

To answer your first question, its because shooting percentage is way too noisy a stat to get anything from the small sample of summer league.  In fact about the only stat that has any carry over from summer league to NBA is shot attempts.  In addition I was looking at his Russian stats which is a much bigger sample.

Your European sample size is less than < 50 games for both guys. It´s also pro leagues with livelihoods of dozens of people depending on wins and losses. They are not going to let young guys chuck away threes at 28%, so we don´t compare them to Josh Green. The fact that Ishchenko and De Larrea earned as many minutes as they did on top European teams speaks to their quality.