Avon def. Centerville, 25-23, 25-22, 25-16
Baltic def. Sioux Valley, 25-8, 25-20, 25-21
Belle Fourche def. Red Cloud, 25-11, 25-15, 25-4
Bowman County, N.D., def. Bison, 25-17, 25-13, 25-19
Bridgewater-Emery def. Gayville-Volin, 25-20, 20-25, 25-20, 25-19
Burke def Gregory, 26-24, 18-25, 25-17, 27-25
Canton def. Vermillion, 25-14, 25-17, 25-10
Chester def. Madison, 25-18, 25-17, 25-13
Colman-Egan def. Oldham-Ramona-Rutland, 25-14, 25-15, 19-25, 25-19
Dell Rapids St. Mary def. De Smet, 19-25, 25-18, 25-21, 25-19
Deubrook Area def. Arlington, 22-25, 25-23, 20-25, 25-9, 15-8
Elk Point-Jefferson def. Irene-Wakonda, 25-14, 25-14, 25-19
Faith def. Cheyenne-Eagle Butte, 25-12, 25-14, 25-14
Florence-Henry def. Wilmot, 22-25, 25-12, 25-14, 25-15
Garretson def. Tea Area, 25-17, 25-16, 23-25, 25-13
Groton Area def. Deuel, 25-15, 25-19, 25-15
Hamlin def. Britton-Hecla, 25-11, 25-11, 25-10
Harrisburg def. Aberdeen Central, 25-11, 25-17, 30-28
Herreid-Selby Area def. Highmore-Harrold, 25-18, 25-18, 25-17
Hill City def. Wall, 25-7, 30-28, 25-22
Hitchcock-Tulare def. Ipswich, 25-17, 25-6, 25-21
James Valley Christian def. Sunshine Bible Academy, 25-14, 25-16, 25-16
Kadoka Area def. Jones County, 25-16, 25-10, 25-19
Lemmon def. New England, N.D., 25-17, 27-25, 25-22
Milbank def. Tiospa Zina, 25-9, 25-14, 25-15
Mobridge-Pollock def. Sully Buttes, 25-12, 25-18, 25-20
Mount Vernon/Plankinton def. West Central, 25-21, 25-17, 25-20
Northwestern def. Potter County, 25-17, 25-18, 25-17
Parkston def. Parker, 25-15, 25-14, 25-23
Philip def. Lyman, 28-26, 19-25, 25-18, 25-18
Platte-Geddes def. Chamberlain, 25-8, 25-11, 25-10
Rapid City Christian def. Gordon-Rushville, Neb., 28-26, 25-15, 25-22
Sanborn Central/Woonsocket def. Kimball/White Lake, 25-21, 15-25, 25-19, 26-24
Sioux Falls Jefferson def. Huron, 25-21, 25-17, 25-8
Sioux Falls Lincoln def. Brookings, 25-14, 26-24, 25-9
Sioux Falls Washington def. Watertown, 25-23, 20-25, 25-21, 25-14
Tri-State, N.D., def. Waubay-Summit, 25-20, 25-22, 25-14
Wagner def. Andes Central/Dakota Christian, 25-20, 25-9, 25-18
Warner def. Faulkton Area, 25-13, 25-15, 25-14
Webster Area def. Redfield, 18-25, 20-25, 25-21, 25-22, 15-9
White River def Colome, 25-12, 25-11, 25-11
Winner def. Corsica-Stickney, 25-20, 25-19, 25-14
Wolsey-Wessington def. Wessington Springs, 25-17, 25-8, 25-11
Wyndmere-Lidgerwood, N.D., def. Langford Area, 25-19, 25-12, 25-16