Whakakihia te rerenga e whai ake nei: I te Pipiri 18, 2015 i panuitia a Brunson hei mema o te 12-tangata 2015 USA Basketball Men's U19 World Cup Team mo te
Ko te 2015 FIBA Under-19 World Cup. I whiwhi a Brunson i te MVP o te whakataetae, i muri i tana arahi i te roopu me te 5.6 awhina me te 2.1 tahae mo te whakataetae. I whakairihia e ia he 30 nga tohu i nga whiringa toa ki a Kariki, ana ka eke ia ki te 14 nga tohu tae atu ki te 6 i te waa roa me te 7 awhina, 5 rebounds me te tahae i te kemu mētara koura ki a Croatia. I taurite a Brunson ki tana hoa kapa a Harry Giles, me te toharite 14.0 mo te whakataetae. I kaha ia i ngā kēmu e rua whakamutunga. I runga i tenei mahinga, i mohiotia ia ko te USA Basketball Male Athlete of the Year, i te Tihema 21, 2015.