Wembanyama akamiririra France pa2019 FIBA U16 European Championship muUdine, Italy. Mukukunda 80<unk>78 kwekota-fainari pamusoro peCroatia, akarekodha mapoinzi gumi nemaviri, makumi maviri nerimwe rebound uye masere ekuvhara. Wembanyama akaita avhareji yemapoinzi mapfumbamwe, 9.6 rebounds uye 5.3 mabhuroko pamutambo, zvichitungamira France kumenduru yesirivheri uye kuwana rukudzo rwechikwata chese. Akakwikwidza pa2021 FIBA Under-19 Basketball World Cup
muLatvia. Wembanyama akaita avhareji yemapoinzi gumi nemana, 7.4 rebounds uye 5.7 mabhuroko pamutambo, uye akatumidzwa zita kuchikwata chevose-mutambo mushure mekutungamira France kumenduru yesirivheri. Akanyora mapoinzi makumi maviri nemaviri, masere rebounds uye masere mabhuroko mukurasikirwa ne22 <unk> 83 kuUnited States mumakwikwi ekupedzisira. Wembanyama akaisa rekodhi yeFIBA yemablock pamutambo mumutambo mumwe chete.