Aberdeen Central def. Mitchell, 25-23, 25-11, 25-23
Aberdeen Roncalli def. Milbank, 25-18, 25-23, 25-21
Alcester-Hudson def. Freeman Academy/Marion, 25-23, 17-25, 26-24, 29-27
Arlington def. Oldham/Ramona/Rutland, 25-20, 25-20, 25-17
Baltic def. Centerville, 25-16, 25-18, 25-18
Bennett County def. Philip, 25-13, 22-25, 25-19, 25-18
Beresford def. Vermillion, 25-15, 25-21, 25-11
Chamberlain def. McLaughlin, 17-25, 25-15, 25-22, 25-13
Chester def. Sioux Valley, 25-23, 25-23, 25-19
Clark-Willow Lake def. Tiospa Zina, 25-9, 25-6, 25-15
Colman-Egan def. Deubrook, 20-25, 21-25, 27-25, 25-18, 15-11
Corsica-Stickney def. Avon, 25-22, 23-25, 11-25, 25-14 18-16
De Smet def. Castlewood, 23-25, 33-31, 25-22, 27-25
Dell Rapids def. Madison, 25-15, 25-12, 25-15
Dell Rapids St. Mary def. Elkton-Lake Benton, 18-25, 25-22, 28-26, 23-25, 15-12
Edgemont def. Lakota Tech, 25-21, 25-7, 27-29, 25-23
Elk Point-Jefferson def. Tri-Valley, 25-12, 25-15, 25-19
Estelline-Hendricks def. Iroquois-Lake Preston, 25-21, 25-23, 25-16
Faith def. Timber Lake, 25-15, 25-16, 25-21
Florence-Henry def. Deuel, 20-25, 25-18, 18-25, 25-15, 15-10
Garretson def. West Central, 25-22, 25-9, 25-20
Gayville-Volin def. Burke, 18-25, 25-19, 12-25, 27-25, 18-16
Great Plains Lutheran def. Britton-Hecla, 25-14, 25-18, 25-16
Hanson def. Freeman, 25-6, 25-18, 25-19
Harrisburg def. Sioux Falls Christian, 25-11, 25-17, 25-27, 25-16
Herreid-Selby Area def. Sully Buttes, 25-22, 25-22, 25-13
Hill City def. Custer, 25-18, 25-12, 25-20
Hitchcock-Tulare def. Sanborn Central/Woonsocket, 25-17, 25-11, 25-19
Huron def. Pierre, 30-32, 25-21, 25-23, 25-17
Ipswich def. Aberdeen Christian, 25-20, 22-25, 25-15, 25-22
Irene-Wakonda def. Viborg-Hurley, 26-24, 23-25, 20-25, 25-20, 15-11
Jones County def. Colome, 25-12, 25-17, 25-15
Kadoka Area def. Stanley County, 25-7, 25-8, 25-17
Kimball/White Lake def. Platte-Geddes, 25-16, 25-14, 25-16
Lennox def. McCook Central/Montrose, 25-21, 25-8, 25-18
Linton-HMB (ND) def. Mobridge-Pollock, 25-18, 25-14, 25-22
Lyman def. Highmore-Harrold, 25-19, 25-22, 25-12
Mount Vernon/Plankinton def. Gregory, 25-9, 25-9, 25-5
Northwestern def. Groton Area, 25-18, 25-16, 26-24
O’Gorman def. Sioux Falls Lincoln, 25-16, 25-15, 25-17
Parker def. Flandreau, 19-25, 25-19, 25-9, 25-12
Parkston def. Bon Homme, 25-22, 25-15, 25-22
Potter County def. Strasburg-Zeeland (ND), 25-8, 25-13, 25-9
Sioux Falls Lutheran def. Canistota, 25-23, 25-21, 25-21
Sioux Falls Roosevelt def. Brookings, 25-23, 20-25, 25-18, 25-15
Sioux Falls Washington def. Brandon Valley, 25-27, 25-20, 25-22, 18-25, 20-18
Spearfish def. Hot Springs, 25-19, 23-25, 26-24, 25-22
St. Thomas More def. Belle Fourche, 25-23, 25-14, 25-13
Todd County def. St. Francis Indian, 25-6, 25-10, 25-17
Watertown def. Sioux Falls Jefferson, 22-25, 25-20, 16-25, 25-15, 16-14
Waverly-South Shore def. Leola/Frederick Area, 22-25, 25-18, 25-18, 25-23
Webster Area def. Langford Area, 25-20, 25-15, 25-13
Wessington Springs def. James Valley Christian, 25-20, 25-9, 25-22
White River def. Lower Brule, 23-25, 25-21, 25-21, 25-18
Winner def. Wagner, 25-11, 25-21, 26-24
Wolsey-Wessington def. Sunshine Bible Academy, 25-10, 25-12, 25-8