The New Zealand under 20 rugby side has retained it's world championship title after beating Australia 62-17 in the final in Argentina.
The two-time defending champions led 25-3 at half time and scored 7 tries to 2.
Winger Telusa Veainu (vee-ah-enu) scored 3 tries with one each to hooker Liam Coltman, fullback Tom Marshall and flanker Sean Polwart all scored tries, while captain and first five Tyler Bleyendaal scored a try and kicked 23 points.
South Africa beat England 27-22 in the play-off for third.