Aberdeen Central def. Mitchell, 25-20, 25-22, 25-17

Aberdeen Christian def. Ipswich, 25-20, 25-22, 25-17

Aberdeen Roncalli def. Milbank, 25-23, 23-25, 25-18, 25-20

Avon def. Corsica-Stickney, 25-22, 25-18, 25-11

Baltic def. Centerville, 25-16, 25-17, 25-15

Burke def. Gayville-Volin, 25-19, 25-19, 19-25, 25-15

Canistota def. Sioux Falls Lutheran, 25-21, 25-19, 24-26, 25-13

Castlewood def. De Smet, 25-15, 25-12, 25-14

Chamberlain def. Cheyenne-Eagle Butte, 25-22, 25-14, 25-13

Chamberlain def. McLaughlin, 19-25, 25-16, 25-10, 21-25, 15-10

Chester def. Sioux Valley, 25-12, 25-17, 25-12

Colman-Egan def. Deubrook Area, 25-22, 25-17, 25-12

Crow Creek def. Crazy Horse, 25-11, 25-12, 25-8

Dell Rapids def. Madison, 25-23, 25-21, 23-25, 25-21

Douglas def. Lead-Deadwood, 25-18, 25-11, 25-15

Edgemont def. Lakota Tech, 25-12, 25-12, 25-15

Elk Point-Jefferson def. Tri-Valley, 23-25, 25-21, 25-19, 26-24

Elkton-Lake Benton def. Dell Rapids St. Mary, 25-16, 25-13, 25-7

Estelline-Hendricks def. Iroquois/Lake Preston, 25-13, 25-13, 25-23

Florence-Henry def. Deuel, 27-25, 25-16, 25-10

Freeman def. Hanson, 25-20, 25-13, 25-23

Garretson def. West Central, 25-22, 25-19, 25-21

Great Plains Lutheran def. Britton-Hecla, 25-22, 25-10, 25-10

Groton Area def. Northwestern, 29-27, 21-25, 25-20, 28-26

Highmore-Harrold def. Lyman, 25-13, 25-23, 25-21

Hitchcock-Tulare def. Sanborn Central/Woonsocket, 25-12, 25-21, 25-12

Irene-Wakonda def. Viborg-Hurley, 25-20, 25-13, 23-25, 23-25, 15-13

James Valley Christian def. Wessington Springs, 19-25, 25-11, 25-11, 25-21

Jones County def. Colome, 25-8, 25-12, 25-18

Kadoka Area def. Stanley County, 25-14, 26-24, 25-14

Leola-Frederick Area def. Waverly-South Shore, 25-18, 25-18, 25-9

Lennox def. McCook Central/Montrose, 25-16, 25-16, 25-13

Linton-HMB def. Mobridge-Pollock, 17-25, 25-19, 25-12, 16-25, 15-9

McLaughlin def. Cheyenne-Eagle Butte, 26-24, 25-17, 21-25, 25-19

Mount Vernon/Plankinton def. Gregory, 25-13, 25-15, 21-25, 26-24

North Central def. Wakpala, 25-16, 25-12, 25-18

Pierre def. Huron, 19-25, 25-18, 25-12, 14-25, 15-6

Sioux Falls Jefferson def. Watertown, 25-14, 25-16, 25-15

Sioux Falls O’Gorman def. Sioux Falls Lincoln, 25-17, 25-22, 25-23

Sioux Falls Washington def. Brandon Valley, 25-21, 25-18, 25-18

Stanley County def. New Underwood, 25-15, 25-18, 25-23

Vermillion def. Beresford, 25-9, 25-20, 25-15

Wagner def. Winner, 25-13, 25-16, 25-12

Webster Area def. Langford Area, 25-17, 25-13, 28-26

White River def. Lower Brule, 25-13, 25-6, 25-14

Wolsey-Wessington def. Sunshine Bible Academy, 25-8, 25-13, 25-15