Punahou School has been a member of the Interscholastic League of Honolulu since 1909 and fields about 120 competitive teams. Students interested in participating in an athletic team can try out for one of the 21 different sports beginning in grade 7.
On average, more than 1,500 student athletes from grades 7 to 12 are involved in one or more ILH sports during the school year. That is more than 60 percent of the student body in grades 7 – 12.