HS teams compete in local leagues in Baseball/Softball/Badminton, Track & Field and Golf
MS teams compete in Mixed Touch Football, Track and Badminton.
Season 3 begins early February and ends Mid to end of April with the IASAS tournaments for the HS sports above.
Mixed Touch(MS only): MS Mixed touch teams attend a tournament at the end of April/first week of May each year hosted by Jakarta International School. Participants are home-stayed with families from the host school. The trip departs Friday and returns Sunday with tournament play on Friday evening and all day Saturday. The traveling group represents ISM in a boys/girls and mixed gender team competition.