Pedzisa mutsara unotevera: Miller akamirira Canada mumakwikwi akawanda enyika dzakawanda. Muna Chikunguru 2017, akakwikwidza muchikwata cheCanada chakakunda menduru yegoridhe ku
FIBA U19 World Cup. Miller aiva neavhareji yemapoinzi 1.6 uye rebounds 1.7 pamutambo. Muna Chikumi 2018, aive chidimbu chakakosha chechikwata cheCanada chakabata menduru yesirivheri kuFIBA U18 Americas Championship. Miller akaita avhareji ye 17.3 points, 7.3 rebounds, 1.5 assists uye 1.2 steals pamutambo. Mukukunda semifinal vachipesana nePuerto Rico, akaisa 31 points uye 14 rebounds.