All three classes of South Dakota high school volleyball state tournaments are gathered in Sioux Falls with first round action held on Thursday.

Class AA
State Quarterfinal

Aberdeen Central def. Pierre, 25-13, 25-11, 25-19

Brandon Valley def. Sioux Falls Roosevelt, 18-25, 25-15, 25-19, 25-20

Harrisburg def. Huron, 16-25, 27-25, 25-21, 25-15

Sioux Falls O’Gorman def. Rapid City Stevens, 14-25, 25-21, 25-23, 20-25, 15-11

Class A
State Quarterfinal

Dakota Valley def. Mobridge-Pollock, 25-14, 25-17, 25-16

Mt. Vernon/Plankinton def. Red Cloud, 25-7, 25-17, 25-12

Sioux Falls Christian def. Milbank Area, 25-15, 25-18, 25-17

Spearfish def. Sioux Valley, 25-23, 26-24, 21-25, 26-24

Class B
State Quarterfinal

Chester def. Sanborn Central/Woonsocket, 25-14, 25-17, 25-18

Parker def. Philip, 25-16, 23-25, 25-13, 25-16

Sully Buttes def. Platte-Geddes, 25-23, 25-14, 25-19

Warner def. Harding County, 25-14, 25-10, 25-16