Central Bucks East, Neshaminy, Strath Haven, and Unionville were among the top seeds in the 24-team PIAA District 1 Class AAAA baseball tournament.

Neshaminy, which won the Suburban One National, is the top seed in the District 1 Class AAAA softball tournament.

The district seedings for both sports were announced Thursday.

The top four baseball seeds in the North (No. 1 C.B. East, No. 2 Neshaminy, No. 3 Methacton, No. 4 Perkiomen Valley) and South (No. 1 Strath Haven, No. 2 Unionville, No. 3 West Chester Henderson, and No. 4 Coatesville) received opening-round byes.

Games before the semifinals will be at the higher seeds. The top four teams will advance to states. Central Bucks South, the North's No. 5 seed, is the defending champ.

In the Class AAA baseball tourney, Holy Ghost Prep is the No. 1 seed in a nine-team field. The two finalists will qualify for states.

In AA, No. 3 seed New Hope-Solebury will face No. 2 Springfield (Montco) on May 22. The winner will play No. 1 Bristol for top district honors on May 24. In Class A, Devon Prep heads an eight-team field.

In softball, in addition to Neshaminy, No. 2 Hatboro-Horsham, No. 3 Pennsbury, No. 4 Central Bucks South, No. 5 Owen J. Roberts, No. 6 West Chester Henderson, No. 7 Central Bucks East, and No. 8 Downingtown East received first-round byes.

Games before the semifinals will be at the higher seeds. The top four finishers will advance to states.

In Class AAA, Radnor heads a 10-team field. In Class AA, St. Basil is at the top of a four-team field.

The Class A bracket is expected to be done Friday.

Pairings

CLASS AAAA BASEBALL

May 20 First Round

Council Rock South (N9) at Garnet Valley (S8); West Chester Rustin (S12) at Central Bucks South (N5); Penncrest (S10) at Council Rock North (N7); Wissahickon (N11) at Downingtown West (S6); Radnor (S9) at Cheltenham (N8); North Penn (N12) at Conestoga (S5); Pennridge (N10) at Great Valley (S7); West Chester East (S11) at Boyertown (N6).

CLASS AAA BASEBALL

May 17 First Round

Upper Perkiomen (9) at Academy Park (8).

May 21Quarterfinals

Upper Perkiomen-Academy Park winner at Holy Ghost Prep (1); Phoenixville (5) at Chichester (4); Pottstown (7) at Interboro (2); Marple Newtown (6) at Upper Moreland (3).

CLASS AA BASEBALL

May 22

New Hope-Solebury (3) at Springfield-M (2).

May 24

At Temple-Ambler.

NHS-Springfield winner vs. Bristol (1).

CLASS A BASEBALL

May 21 Quarterfinals

Calvary Baptist (8) at Devon Prep (1); Church Farm (5) at Delco Christian (4); Jenkintown (7) at Calvary Christian (2); Plumstead Christian (6) at Christopher Dock (3).

CLASS AAAA SOFTBALL

May 20 First Round

Kennett (17) at Boyertown (16); Interboro (24) at Spring-Ford (9); Conestoga (21) at Pennridge (12); Garnet Valley (20) at North Penn (13); Perkiomen Valley (18) at West Chester East (15); William Tennent (23) at Methacton (10); Souderton (19) at Upper Darby (14).

CLASS AAA SOFTBALL

May 22 First Round

Chichester (9) at Pottsgrove (8); Phoenixville (10) at Marple Newtown (7).

May 24 Quarterfinals

Chichester-Pottsgrove winner at Radnor (1); Sun Valley (5) at Springfield-Delco (4); Phoenixville-Marple Newtown winner at Nazareth Academy (2); Villa Maria Academy (6) at Upper Merion (3).

CLASS AA SOFTBALL

May 28 Semifinals

Lower Moreland (4) at St. Basil (1); Springfield-M (3) at Christopher Dock (2).

Contact Rick O'Brien at robrien@phillynews.com.