Aberdeen Roncalli def. Hamlin, 25-20, 25-18, 25-11
Arlington def. Estelline, 25-15, 25-14, 25-14
Avon def. Corsica/Stickney, 25-20, 25-18, 25-13
Baltic def. Howard, 25-12, 19-25, 25-19, 25-10
Chester def. Sioux Valley, 17-25, 24-26, 25-22, 24-20, 19-17
Cheyenne-Eagle Butte def. McLaughlin, 25-19, 22-25, 25-15, 25-13
DeSmet def. Colman-Egan, 25-17, 18-25, 23-25, 31-29, 15-8
Deubrook def. Castlewood, 25-9, 25-13, 25-17
Faith def. Timber Lake, 25-14, 25-15, 25-20
Faulkton def. Edmunds Central, 25-22, 25-17, 25-15
Freeman Academy/Marion def. Dell Rapids St. Mary, 25-11, 17-25, 25-14, 25-18
Great Plains Lutheran def. Waubay/Summit, 25-20, 25-18, 18-25, 26-24
Gregory def. Boyd County, Neb., 25-14, 25-18, 10-25, 25-16
Hanson def. Freeman, 19-25, 25-23, 25-20, 25-13
Hendricks, Minn. def. Flandreau Indian, 3-0
Herreid/Selby Area def. Sully Buttes, 25-14, 20-25, 25-13, 25-17
Highmore-Harrold def. Lyman, 26-24, 23-25, 25-16, 25-15
Huron def. Yankton, 25-18, 25-18, 25-17
Irene-Wakonda def. Viborg-Hurley, 25-18, 25-13, 25-13
Kimball/White Lake def. Platte-Geddes, 16-25, 25-21, 25-14, 25-11
Lake Preston def. Elkton-Lake Benton, 25-18, 13-25, 23-25, 25-23, 16-14
Langford def. Britton-Hecla, 25-14, 25-27, 25-11, 25-16
Lead-Deadwood def. Douglas, 25-19, 25-20, 25-19
Lemmon def. Bowman County, N.D., 25-17, 21-25, 25-13, 23-25, 15-10
Lennox def. Alcester-Hudson, 25-15, 20-25, 25-13, 25-19
Linton-HMB, N.D. def. Mobridge-Pollock, 25-17, 14-25, 25-17, 25-22
Madison def. Dell Rapids, 25-19, 25-18, 25-11
McCook Central/Montrose def. Tea Area, 25-12, 25-22, 16-25, 25-21
McIntosh def. Eureka/Bowdle, 27-25, 26-24, 20-25, 23-25, 15-12
Milbank def. Sisseton, 25-17, 25-16, 25-14
Mt. Vernon/Plankinton def. Tri-Valley, 25-21, 25-18, 25-19
Northwestern def. Groton Area, 25-18, 25-9, 25-17
Parker def. Flandreau, 25-9, 25-13, 25-17
Parkston def. Bon Homme, 25-21, 25-19, 25-19
Pine Ridge def. Red Cloud, 25-12, 25-20, 25-12
Sioux Falls Christian def. Southwest Minnesota Christian, Minn., 25-9, 25-14, 25-8
Spearfish def. Sturgis Brown, 25-16, 25-19, 25-18
St. Thomas More def. Hot Springs, 26-24, 25-12, 25-16
Todd County def. St. Francis Indian, 25-22, 25-15, 25-12
Wagner def. Winner, 25-18, 25-21, 25-22
White River def. Lower Brule, 25-9, 25-13, 25-17
Wilmot def. Wyndmere-Lidgerwood, N.D., 25-22, 25-10, 21-25, 25-19
Wolsey-Wessington def. Sunshine Bible Academy, 21-25, 25-17, 25-11, 25-18
Chamberlain Triangular
Chamberlain def. McLaughlin, 25-14, 25-7, 25-12
Chamberlain def. Cheyenne-Eagle Butte, 25-20, 25-20, 25-18
Gayville-Volin Triangular
Gayville-Volin def. Omaha Nation, Neb., 16-25, 25-14, 19-25, 25-16, 15-8
Gayville-Volin def. Marty Indian, 25-9, 25-9, 25-12
Rapid City Christian def. Harding County, 24-26, 25-15, 25-20, 25-22
Kadoka Triangular
Kadoka Area def. Stanley County, 25-20, 25-9, 25-12
Kadoka Area def. New Underwood, 25-17, 25-12, 21-25, 25-18
New Underwood def. Stanley County, 25-20, 19-25, 25-15, 19-25, 15-9
Mitchell Triangular
Harrisburg def. Mitchell, 28-26, 25-19, 25-19
Mitchell Christian def. Iroquois, 25-9, 25-13, 25-7
AP-WF-10-18-17 0801GMT