LeBron James Jr. -- DOMINATION CONTINUES ... Leads 4th Graders to Championship

More insane highlights from 10-year-old LeBron James Jr. -- who led his All-Star youth basketball team to victory this weekend in one of the most prestigious tournaments in the country.

Bronny and his Gulf Coast Blue Chips squad ran the table at the John Lucas All Star Weekend invitation-only tournament in New Orleans ... going undefeated in five games against really tough teams.

But once again, all eyes were on Bronny ... who was just KILLIN' IT ... working an insane crossover, dribbling behind the back and hitting some deep 3s.

"We haven't lost a game yet since Bronny joined the team in mid-December," coach Adrian Sparks tells TMZ Sports.

"He's awesome. He played amazing. He averaged double digits. Bronny's just an all around good kid."