Among its alumni are notable collegiate and professional athletes, including two-time, women's hockey Olympic gold medalist, Sarah Vaillancourt '04 and National Hockey League (NHL) player, Brian Flynn '07. Students compete on Varsity, Junior Varsity, and Third and Fourth Form teams (freshmen and sophomores) throughout the year in cross country, field hockey, football, soccer, and volleyball in the fall; basketball, ice hockey, squash, and wrestling in the winter; and baseball, crew, golf, lacrosse, softball, and tennis in spring. Third and Fourth Form students are required to participate on a team in each of the three seasons each year. Fifth and Sixth Form students (juniors and seniors) are required to participate on at least two teams each year.