The four-divisional format will be used for the following team sports: boys and girls cross country, boys and girls soccer, boys and girls basketball, boys and girls indoor and outdoor track, golf, baseball, softball, and girls volleyball.
Foran, Guilford, Daniel Hand, Hillhouse, Jonathan Law
Amity, Cheshire, Lyman Hall, Shelton, Sheehan
Hamden, Xavier, Mercy, Notre Dame, Sacred Heart, Fairfield Prep, West Haven
Branford, Career, East Haven, North Haven, Wilbur Cross
* Note: Hillhouse/Career have a co-op team in boys soccer and compete in the Hammonasset Division.
The divisional structure for football is:
Division I - West
Shelton, Fairfield Prep, Hamden, Xavier, Amity
Division I - East
West Haven, Cheshire, Notre Dame, Wilbur Cross, Daniel Hand
Division II - West
Branford, Hillhouse, Lyman Hall, Guilford, Jonathan Law
Division II - East
East Haven, North Haven, Sheehan, Foran
The divisional structure for ice hockey (new for 2012-13) is:
Cheshire, East Haven, Fairfield Prep, Hamden, North Haven, Notre Dame, West Haven, Xavier
Amity, Branford, Guilford, Hand, Lyman Hall, Milford, North Branford, Sheehan
The divisional structure for wrestling is:
Amity, Cheshire, Hand, Law, Xavier
Fairfield Prep, Guilford, Shelton, Branford, East Haven, Foran, New Haven
The following sports have a one or two divisional structure (but are scheduled using a tier-system) and compete as one conference in field hockey, gymnastics, boys and girls lacrosse, girls and boys swimming and tennis.