The WPIAL field hockey committee on Monday released the brackets for the Class 3A, Class 2A and Class A playoffs.

Pine-Richland (Class 3A), Peters Township (Class 2A) and Shady Side Academy (Class A) are the No. 1 seeds.

Pine-Richland will host No. 4 Norwin in one Class 3A semifinal at 7 p.m. Wednesday.

No. 2 Mt. Lebanon will host No. 3 North Allegheny at 7 Wednesday in the other semifinal.

The winners will meet for the title Oct. 28, at North Allegheny.

The Class A and Class 2A championship games will be at 6:30 and 8 p.m., respectively, Oct. 29 at North Allegheny.

Shady Side Academy will host No. 4 Winchester Thurston in the Class A semifinals at 6 p.m. Thursday.

No. 2 Aquinas Academy and No. 3 The Ellis School will follow at 7:30.

Peters Township will host No. 4 Upper St. Clair in one Class 2A semifinal at 7 p.m. Wednesday. Fox Chapel, the No. 2 seed, will host No. 3 Latrobe at 7 p.m. Wednesday.

Pine-Richland is a six-time defending WPIAL Class 3A champion. Last year, Peters Township snapped Penn-Trafford’s eight-year Class 2A title streak.

Shady Side has won six of the past seven WPIAL Class A crowns.

The three WPIAL champions also will move on to the PIAA tournament scheduled to begin Nov. 4.