St Dominic’s belongs to The International Schools Sports Association (ISSA) and the Council of Heads of English Speaking Schools (CHESS) and students participate in national and international competitions.
The ISSA yearly tournaments for football, basketball, volleyball and badminton are for students between 14 to 18 years old. ISSA places a strong emphasis on sportsmanship, encouragement of friendships and the role of athletes as ambassadors for their school and their country. Currently, ISSA sports competitions involve 13 International Schools including Aberdeen in Scotland, London in England, Madrid & Barcelona in Spain and Ankara in Turkey.
St. Dominic’s is the only school in Portugal involved in this association and is one of only three teams from the association with both male and female teams participating in all sports.