Aberdeen Central def. Mitchell, 25-17, 25-13, 25-20
Huron def. Brookings, 25-17, 25-17, 25-19
Pierre def. Brandon Valley, 25-23, 25-18, 25-18
Sioux Falls Roosevelt def. Yankton, 16-25, 25-19, 21-25, 25-16, 17-15
Sioux Falls Washington def. Sioux Falls Lincoln, 25-20, 26-24, 25-17
Sturgis Brown def. Douglas, 25-13, 21-25, 26-24, 25-12
Watertown def. Sioux Falls O’Gorman, 25-22, 25-19, 19-25, 21-25, 15-13
Region 1A
First Round
Aberdeen Roncalli def. Sisseton, 25-19, 25-12, 25-14
Milbank def. Webster, 25-16, 25-11, 25-17
Redfield/Doland def. Tiospa Zina Tribal, 25-6, 25-12, 25-9
Region 2A
First Round
Flandreau def. Deuel, 3-0
Region 3A
First Round
Baltic def. Garretson, 25-12, 25-22, 22-25, 25-15
West Central def. Tri-Valley, 25-14, 24-26, 26-24, 25-14
Region 4A
First Round
Beresford def. Lennox, 25-17, 25-20, 25-19
Elk Point-Jefferson def. Canton, 25-10, 25-16, 25-15
Tea Area def. Vermillion, 25-10, 25-10, 25-18
Region 5A
First Round
McCook Central/Montrose def. Bon Homme, 25-5, 25-9, 25-20
Mt. Vernon/Plankinton def. Parkston, 17-25, 25-19, 22-25, 25-21, 15-12
Wagner def. Platte-Geddes, 25-13, 25-22, 25-16
Region 6A
First Round
Chamberlain def. Crow Creek, 24-23, 25-14, 25-10
Cheyenne-Eagle Butte def. Stanley County, 12-25, 25-20, 25-22, 25-13
Mobridge-Pollock def. McLaughlin, 25-19, 25-17, 25-23
Region 8A
First Round
Lead-Deadwood def. Hot Springs, 25-23, 25-22, 25-20
Rapid City Christian def. Hill City, 25-12, 25-14, 25-22
St. Thomas More def. Custer, 25-22, 25-22, 25-19
Region 1B
Quarterfinal
Langford def. Clark/Willow Lake, 25-10, 25-17, 25-16
Northwestern def. Florence/Henry, 25-10, 25-19, 25-9
Warner def. Great Plains Lutheran, 25-14, 25-11, 25-7
Waverly-South Shore def. Wilmot, 25-20, 25-22, 13-25, 16-25, 15-13
Region 2B
Quarterfinal
Faulkton def. Leola/Frederick, 25-18, 25-14, 25-19
Herreid/Selby Area def. Eureka/Bowdle, 25-8, 25-18, 25-7
Ipswich def. Potter County, 24-26, 25-17, 29-27, 25-22
Sully Buttes def. Highmore-Harrold, 25-19, 25-18, 25-16
Region 3B
Quarterfinal
Arlington def. Castlewood, 25-16, 25-15, 25-15
Deubrook def. Lake Preston, 25-10, 25-18, 25-10
Hitchcock-Tulare def. James Valley Christian, 25-21, 25-22, 24-26, 25-19
Wolsey-Wessington def. DeSmet, 25-21, 25-22, 21-25, 13-25, 15-10
Region 4B
Quarterfinal
Chester def. Dell Rapids St. Mary, 25-6, 25-13, 25-15
Elkton-Lake Benton def. Colman-Egan, 22-25, 13-25, 25-22, 25-22, 15-10
Ethan def. Sanborn Central/Woonsocket, 23-25, 25-20, 25-14, 25-16
Hanson def. Howard, 25-16, 25-6, 25-11
Region 5B
Quarterfinal
Alcester-Hudson def. Menno, 25-15, 27-25, 26-24
Bridgewater-Emery def. Irene-Wakonda, 25-21, 25-16, 25-16
Freeman def. Freeman Academy/Marion, 20-25, 25-18, 25-22, 25-17
Gayville-Volin def. Canistota, 25-18, 21-25, 25-23, 11-25, 15-12
Region 6B
Quarterfinal
Andes Central/Dakota Christian def. Colome, 25-4, 25-14, 25-20
Avon def. Gregory, 25-18, 25-15, 26-24
Burke/South Central def. Scotland, 25-15, 25-18, 25-22
Kimball/White Lake def. Tripp-Delmont/Armour, 25-10, 25-10, 25-18
Region 7B
Quarterfinal
Kadoka Area def. Lyman, 25-22, 25-12, 25-23
New Underwood def. Edgemont, 25-18, 20-25, 25-13, 25-12
Wall def. White River, 25-20, 25-16, 25-23
Region 8B
Quarterfinal
Faith def. Dupree, 25-13, 25-14, 25-20
Harding County def. Tiospaye Topa, 25-9, 25-8, 25-11
Lemmon def. Bison, 25-7, 25-18, 25-17
Timber Lake def. McIntosh, 23-25, 25-21, 25-15, 25-17
AP-WF-11-01-17 0800GMT