Aberdeen Roncalli def. Florence/Henry, 25-23, 26-21, 21-25, 28-26
Bridgewater-Emery def. Menno 19-25, 25-20, 25-20, 18-25, 15-13
Canistota def. Viborg-Hurley, 23-25, 25-21, 23-25, 25-14, 15-13
Castlewood def. Waverly-South Shore, 25-7, 25-4, 25-5
Chester Area def. Baltic, 25-17, 25-17, 25-19
Clark/Willow Lake def. Iroquois/Lake Preston, 25-15, 25-19, 25-22
Deubrook Area def. Flandreau, 27-29, 18-25, 25-19, 25-22
Deuel def. De Smet, 10-25, 25-18, 19-25, 25-23, 15-11
Elk Point-Jefferson def. West Central, 25-11, 25-19, 25-17
Estelline/Hendricks def. Colman-Egan, 25-21, 25-16, 27-25
Faulkton Area def. Hitchcock-Tulare, 25-8, 25-12, 25-21
Freeman def. Centerville, 25-10, 25-11, 25-13
Highmore-Harrold def. Sunshine Bible Academy, 25-13, 25-25, 25-15
Hot Springs def. Red Cloud, 25-16, 25-11, 25-13
Howard def. Hanson, 14-25, 25-20, 25-23, 25-17
Huron def. Watertown, 19-25, 25-19, 25-18, 25-22
Ipswich def. Sully Buttes, 24-26, 25-15, 25-16, 25-20
Langford Area def. Aberdeen Christian, 25-22, 25-18, 25-23
Lemmon def. McIntosh, 23-25, 25-19, 25-20, 25-11
Lennox def. Tea Area, 28-26, 25-11, 18-25, 21-25, 15-9
McCook Central/Montrose def. Sioux Valley, 21-25, 25-20, 22-25, 25-19, 15-11
Mobridge-Pollock def. North Central, 25-19, 25-11, 25-19
Mount Vernon/Plankinton def. Ethan, 25-12, 27-25, 25-11
Pierre def. Mitchell, 25-22, 25-19, 25-15
Platte-Geddes def. Wagner, 19-25, 25-19, 25-23, 25-20
Sanborn Central/Woonsocket def. Corsica-Stickney 25-21, 25-23, 19-25, 24-26, 15-9
Santee, Neb. def. Marty, 25-12, 25-22, 25-22
Scotland def. Gayville-Volin, 23-25, 25-23, 25-18, 25-21
Sioux Falls Christian def. Madison, 25-12, 25-14, 25-11
Sioux Falls Lincoln def. Brandon Valley, 25-22, 25-21, 22-25, 25-15
Sioux Falls Roosevelt def. Yankton, 25-15, 25-22, 25-21
Sioux Falls Washington def. Sioux Falls Jefferson, 17-25, 25-19, 25-22, 20-25, 16-14
Sisseton def. Hankinson, N.D., 22-25, 25-19, 25-19, 25-8
Spearfish def. Rapid City Christian, 25-20, 25-12, 25-9
Sturgis def. Custer, 25-12, 25-21, 25-20
Tiospa Zina def. Waubay/Summit, 23-25, 25-18, 25-12, 26-24
Tripp-Delmont/Armour def. Avon, 26-24, 25-16, 25-20
Vermillion def. Bon Homme, 25-19, 25-16, 25-22
Warner def. Miller, 25-13, 25-23, 23-25, 25-22
Webster Area def. Groton Area, 14-25, 25-18, 25-15, 17-25, 15-10
Wessington Springs def. Freeman Academy/Marion, 25-11, 25-13, 25-13