Alcester-Hudson def. Scotland, 25-19, 25-17, 25-17
Andes Central/Dakota Christian def. Bon Homme, 25-22, 25-7, 12-25, 25-21
Arlington def. Deubrook, 26-24, 25-22, 25-14
Avon def. Parkston, 25-22, 25-21, 24-26, 25-21
Beresford def. Baltic, 25-13, 23-25, 25-18, 25-20
Canistota def. Gayville-Volin, 25-16, 25-20, 25-16
Chamberlain def. Stanley County, 25-16, 16-25, 25-18, 23-25, 15-12
Colman-Egan def. Oldham-Ramona/Rutland, 25-10, 25-16, 25-13
Dakota Valley def. Tri-Valley, 25-17, 25-19, 27-25
DeSmet def. Dell Rapids St. Mary, 25-17, 25-20, 25-18
Douglas def. Custer, 25-21, 25-23, 25-17
Dupree def. McLaughlin, 17-25, 25-23, 25-22, 18-25, 15-11
Elk Point-Jefferson def. Dell Rapids, 25-22, 25-19, 17-25, 26-24
Ethan def. Kimball/White Lake, 25-17, 25-19, 25-21
Faith def. Bison, 25-15, 25-5, 25-13
Faulkton def. Sully Buttes, 25-16, 25-22, 25-21
Florence/Henry def. Tri-State, N.D., 25-17, 22-25, 25-21, 22-25, 15-6
Freeman def. Irene-Wakonda, 25-16, 25-20, 25-14
Gregory def. St. Francis Indian, 25-11, 25-22, 25-15
Groton Area def. Ipswich, 25-23, 25-20, 22-25, 26-24
Hamlin def. Great Plains Lutheran, 25-19, 25-14, 25-18
Hanson def. Sanborn Central/Woonsocket, 23-25, 28-26, 25-19, 18-25, 15-8
Herreid/Selby Area def. Mobridge-Pollock, 25-15, 25-14, 25-15
Hill City def. Edgemont, 25-19, 21-25, 25-13, 25-22
Huron def. Brookings, 25-17, 29-27, 25-22
James Valley Christian def. Highmore-Harrold, 25-21, 23-25, 23-25, 25-23, 15-10
Langford def. Leola/Frederick, 25-23, 25-12, 25-14
Lead-Deadwood def. Hot Springs, 26-24, 25-23, 17-25, 18-25, 15-12
Lennox def. Vermillion, 25-20, 23-25, 25-18, 25-22
Little Wound def. Oelrichs, 25-22, 32-30, 19-25, 25-15
Madison def. Canton, 25-22, 25-16, 17-25, 28-26
Milbank Area def. Deuel, 25-18, 25-19, 25-15
Mitchell def. Pierre, 25-17, 27-25, 25-13
Mitchell Christian def. Sunshine Bible Academy, 25-20, 25-11, 25-15
Northwestern def. Sisseton, 25-10, 25-10, 25-6
Parker def. Sioux Valley, 25-7, 25-16, 25-11
Redfield/Doland def. Hitchcock-Tulare, 25-27, 25-13, 25-11, 19-25, 15-8
Sioux Falls Lincoln def. Yankton, 25-18, 25-20, 25-20
Sioux Falls Roosevelt def. Brandon Valley, 25-19, 26-24, 25-23
South Border, N.D. def. Eureka/Bowdle, 25-22, 25-18, 25-13
Spearfish def. Red Cloud, 20-25, 25-15, 25-23, 25-19
St. Thomas More def. Sturgis, 25-14, 22-25, 25-22, 25-18
Timber Lake def. Cheyenne-Eagle Butte, 25-19, 21-25, 25-10, 25-14
Wall def. Jones County, 25-15, 25-17, 19-25, 25-8
Warner def. Webster, 25-6, 25-13, 25-9
Watertown def. Harrisburg, 25-23, 25-19, 25-17
Wessington Springs def. Iroquois, 25-12, 25-7, 25-11
West Central def. Tea Area, 18-25, 19-25, 25-22, 25-16, 15-9
Wilmot def. Waubay/Summit, 25-17, 17-25, 25-13, 25-20
Winner def. Burke, 25-20, 25-19, 19-25, 22-25, 15-13
Wolsey-Wessington def. Lake Preston, 25-10, 25-12, 25-19
AP-WF-08-29-18 0801GMT