Luka Dončić (age 14.8 years) joined a friendly U-16 tournament in Hungary with the Slovenian national junior selection. During a game against Poland he scored 45p which Slovenian won 99:78. Aside from Poland, Romania and Czech Republic participated as well. Luka averaged 35.3p-7.6r during the tournament and had 81% 2P% and 57% 3P%. It's safe to say that he dominated the tournament and he wasn't even 15 years old.
Source: Gigantes.com