The official pairings have been announced for postseason soccer matches in both Class AA and Class A.

The Aberdeen Central boys go in as the third seed in Class AA and will host Tea Area at 6 p.m. Tuesday at Brownell Activities Complex. The Central girls are the 14th seed and will play at Pierre at 3 p.m. Tuesday.

Groton enters as the third seed in Class A girls and will host Vermillion at 4 p.m. Tuesday. The Groton boys are the eighth seed and will play at top-seeded Vermillion Tuesday.

Here are the complete opening-round playoff matchups:

Class AA Boys

16 Brandon Valley (3-8-3) at 1 Sioux Falls Christian (13-1)

9 Sioux Falls Roosevelt (4-4-4) at 8 O’Gorman (7-4-2)

13 Brookings (5-7-2) at 4 Rapid City Stevens (11-1-1)

12 Sioux Falls Washington (5-6-1) at 5 Watertown (11-2-1)

15 Sturgis (5-8-1) at 2 Sioux Falls Lincoln (11-1-1)

10 Spearfish (5-7-1) at 7 Pierre (9-3-2)

14 Mitchell (5-7-2) at 3 Sioux Falls Jefferson (9-1-1)

11 Tea Area (6-7-1) at 6 Aberdeen Central (9-2-3)

Class AA Girls

16 Watertown (4-10) at 1 Harrisburg (14-0)

9 Sioux Falls Lincoln (6-5-1) at 8 O’Gorman (7-6)

13 Rapid City Central (5-7) at 4 Tea Area (9-3-2)

12 Mitchell (5-7-1) at 5 Sioux Falls Washington (7-3-2)

15 Brookings (4-9-1) at 2 Rapid City Stevens (12-0)

10 Brandon Valley (7-6-1) at 7 Yankton (8-4-2)

14 Aberdeen Central (4-7-3) at 3 Pierre (10-3-1)

11 Spearfish (5-4-4) at 6 Sioux Falls Roosevelt (8-4)

Class A Boys

8 Groton (2-7-4) at 1 Vermillion (7-2-1)

5 Belle Fourche (7-6) at 4 Rapid City Christian (5-3-2)

7 St. Thomas More (5-8-1) at 2 James Valley Christian (10-4)

6 West Central (4-6-2) at 3 Freeman Academy (7-3-3)

Class A Girls

8 Belle Fourche (1-8-1) at 1 Sioux Falls Christian (9-2-2)

5 St. Thomas More (4-9) at 4 West Central (7-4)

7 Vermillion (1-10) at 2 Groton (7-1-1)

6 Garretson (3-9-2) at 3 Dakota Valley (7-4)