Paul Roos thrashed Brisbane Boys' College 35-3 in the final of the Sanix World Youth Rugby Tournament in Fukuoka.
The Stellenbosch school led 13-0 at the break.
Paul Roos won all six of their matches at the tournament by big margins, scoring 316 points and conceding just 16.
Participation in the World Rugby Youth Tournament is by invitation only. The overseas schools selected by their respective unions to represent their country are expected to be of a high standard and among the top five in the country.
Paul Roos's results:
Beat Higashi Fukuoka (Japan) 45-13
Beat Kashiwa (Japan) 78-0
Beat Enisei-STM (Russia) 57-0
Beat Gose Industrial High (Japan) 38-0 (quater-final)
Beat Truro College (England) 63-0 (semi-final)
Beat Brisbane Boys' College 35-3 (final)
Previous winners and runners-up:
2014: Hamilton Boys' High School (New Zealand) beat Paarl Boys' High School (South Africa)
2013: Saint Kentigern College (New Zealand) beat Hartpury College (United Kingdom)
2012: Kelston Boys' High School (New Zealand) beat Truro College (United Kingdom)
2011: Hamilton Boys' High School (New Zealand) beat Ivybridge Community College (United Kingdom)
2010: Hamilton Boys' High School (New Zealand) beat Truro College (United Kingdom)
2009: Dax Landes High School (France) beat Higashi Fukuoka High School (Japan)
2008: Glenwood High School (South Africa) beat Tarbes High School (France)
2007: Westfields Sports High School (Australia) beat Higashi Fukuoka High School (Japan)
2006: Christchurch Boys' High School (New Zealand) beat Hoërskool Monument (South Africa)
2005: Christchurch Boys' High School (New Zealand) beat The Southport School (Australia)
2004: Rotorua Boys' High School (New Zealand) beat Higashi Fukuoka High School (Japan)
2003: Rotorua Boys' High School (New Zealand) beat Tonga College (Tonga)
2002: Boland Landbou (South Africa) beat Sendai Ikuei High School (Japan)
2001: Grey College (South Africa) beat St Peter's College (New Zealand)
2000: The King's School (Australia) beat Paul Roos Gymnasium (South Africa)
Top 20 schools rankings (5 May)
Photo: Paul Roos