Orange County had three of the top four seeded teams in the Southern Section Division 1 baseball playoff pairings that were released on Monday.
Edison (23-3), led by pitcher Henry Owens, was the No. 1 team despite losing a game to Marina in the Sunset League's final week.
Mater Dei (22-5), the defending champion behind last year's state player of the year, senior Cory Hahn, was seeded second and JSerra (23-4) was seeded fourth. Mater Dei and JSerra finished 1-2 in the Trinity League.
The only team outside of Orange County to be among the top four seeded teams was third-seeded Vista Murrieta (21-5), the champion of the Southwestern League.
Three of the seeded teams will play the winners of wild card games scheduled for Tuesday to kick off the Southern Section-Ford Championships presented by Farmers. Edison will face the winner of Chaparral at Corona Santiago; Mater Dei will play the winner of Corona Centennial at Temecula Valley; and Vista Murrieta will play the winner of Royal at Villa Park.
JSerra will play the second-place team from the Southwestern League, Great Oak.
Dana Hills, which lost to Mater Dei in last year's championship game, 2-0, will play host to Oxnard in its first round game on Friday.
Two other county team were seeded No. 1. Cypress (22-7) earned the top spot in Division 2 and will play the winner of Pioneer Valley at Dos Pueblos. Oxford Academy (22-2) is No. 1 in Division 6 and will play the winner of Mojave at Excelsior Education Center.
The only other county teams that were seeded were Beckman (No. 4 in Division 3), Laguna Beach (No. 4 in Division 4) and Whittier Christian (No. 3 in Division 5).