Here's Givony's recap from FIBA U19s:
Barrett completely outplayed U.S. wings Cameron Reddish (No. 3 in ESPN's 2018 Top 100) and Hamidou Diallo (a potential 2018 lottery pick) in their head-to-head matchups, looking virtually unstoppable off the dribble and getting to the free throw line 15 times en route to a 38-point, 13-rebound, 5-assist, 1-turnover outing -- one of the best individual performances we've ever witnessed at the FIBA youth level.
The young forward even knocked down a pair of 3-pointers against the U.S., something that is considered the weakest part of his game (he's a 33 percent career 3-point shooter on 83 attempts in 26 games in our database). His mechanics are sound and he was effective at this tournament rising up and making shots off the dribble, so it's likely only a matter of time until he's able to expand his range. The rest of his game is as polished as you'll find from a 17-year-old.
He's incredibly smooth in transition, displays elite body control and footwork attacking the rim in the half court, looks unselfishly for the open man and can play lockdown, multipositional defense when he puts his mind to it. Barrett's poise was arguably the most impressive thing he showed in Cairo earlier this month. His demeanor never changed in the medal rounds, and he looked locked in and focused as he delivered big play after big play.
Consensus seems to be really good athlete and the 6-10 wingspan helps a lot.