The Kohn Squash Pavilion, which stands at the top of the school's entrance driveway, is the home of Westminster's Boys' and Girls' Squash programs. The facility, which opened in the winter of 2000, gives the Martlets what is arguably the finest squash facility in New England. Internationally ranked player Brett Martin feels it is one of the finest facilities in the world. Spectators can view the action on the eight international courts from a central elevated viewing platform, as well as from balconies that overlook the courts.
Westminster competes annually for the Founders League championship, playing one of the strongest schedules in all of New England. Last year, the team played against 14 of the top 15 ranked teams in New England.