Aberdeen Central def. Watertown, 25-15, 20-25, 25-5, 25-16
Alcester-Hudson def. Irene-Wakonda, 25-10, 25-19, 25-13
Arlington def. Sioux Valley, 25-19, 28-26, 22-25, 25-22
Beresford def. Tea Area, 25-18, 25-22, 25-13
Bison def. McIntosh, 25-6, 25-14, 25-22
Bon Homme def. Scotland, 25-14, 25-12, 25-13
Brandon Valley def. Yankton, 25-22, 25-16, 26-24
Bridgewater-Emery def. Colman-Egan, 25-23, 25-19, 25-23
Burke/South Central def. Andes Central/Dakota Christian, 19-25, 25-9, 25-16, 26-24
Chester def. West Central, 25-16, 25-18, 25-16
Clark/Willow Lake def. Flandreau, 25-19, 25-17, 25-15
Colome def. Gregory, 25-18, 25-21, 23-25, 25-22
Dakota Valley def. Lennox, 25-16, 25-14, 25-11
DeSmet def. Hamlin, 25-20, 20-25, 18-25, 25-23, 15-11
Deubrook def. Dell Rapids, 24-26, 25-13, 25-14, 25-16
Elkton-Lake Benton def. Deuel, 25-12, 25-11, 25-19
Florence/Henry def. Estelline, 25-7, 25-16, 25-14
Freeman Academy def. Viborg-Hurley, 25-16, 25-9, 25-23
Groton Area def. Hitchcock-Tulare, 22-25, 20-25, 25-18, 25-16, 15-13
Hanson def. Menno, 25-13, 25-14, 25-12
Harding County def. Baker, Mont., 25-11, 25-15, 25-17
Harrisburg def. Sioux Falls Washington, 25-19, 25-19, 25-17
Hendricks, Minn. def. Dell Rapids St. Mary, 25-19, 25-16, 25-23
Herreid/Selby Area def. Faulkton, 22-25, 28-30, 25-13, 25-22, 15-9
Howard def. Iroquois, 25-11, 25-13, 25-10
Huron def. Brookings, 25-14, 25-17, 25-16
Lemmon def. Grant County, N.D., 25-20, 25-15, 21-25, 25-16
Leola/Frederick def. Britton-Hecla, 25-21, 25-20, 26-24
Lyman def. Jones County, 21-25, 25-12, 25-12, 25-16
Madison def. Milbank Area, 25-19, 25-23, 25-23
Marshall, Minn. def. Sioux Falls Lincoln, 25-18, 18-25, 25-9, 18-25, 15-10
McCook Central/Montrose def. Garretson, 25-15, 25-9, 25-19
McLaughlin def. Standing Rock, N.D., 25-11, 25-11, 25-15
Miller def. Platte-Geddes, 25-15, 24-26, 27-25, 25-15
Mobridge-Pollock def. Aberdeen Roncalli, 25-22, 12-25, 25-21, 25-23
Parkston def. Wagner, 25-20, 25-20, 14-25, 25-17
Ponca, Neb. def. Vermillion, 25-10, 25-13, 25-14
Potter County def. Cheyenne-Eagle Butte, 25-10, 25-11, 25-18
Rapid City Central def. Sturgis Brown, 25-8, 25-14, 25-18
Rapid City Christian def. Edgemont, 25-13, 25-9, 25-9
Rapid City Stevens def. Douglas, 25-10, 25-6, 25-11
Sanborn Central/Woonsocket def. James Valley Christian, 25-21, 25-21, 22-25, 25-22
Sioux Falls Christian def. Tri-Valley, 25-18, 25-14, 25-13
Sioux Falls Roosevelt def. Sioux Falls O’Gorman, 18-25, 25-15, 17-25, 25-19, 15-13
Sisseton def. Great Plains Lutheran, 25-17, 25-20, 25-16
Spearfish def. Belle Fourche, 22-25, 25-14, 19-25, 25-18, 15-11
Sully Buttes def. Stanley County, 25-7, 25-11, 25-12
Warner def. Redfield/Doland, 25-11, 25-15, 25-20
Waubay/Summit def. Ipswich, 25-18, 25-18, 25-21
Webster def. Langford, 25-22, 25-15, 25-18
Wessington Springs def. Sunshine Bible Academy, 25-14, 25-20, 25-7
Winner def. Chamberlain, 25-21, 25-12, 21-25, 25-19
Wolsey-Wessington def. Highmore-Harrold, 25-15, 25-19, 25-21
AP-WF-10-12-16 0801GMT