Aberdeen Christian def. Langford, 25-11, 25-21, 25-20
Aberdeen Roncalli def. Florence-Henry, 25-19, 25-18, 25-15
Andes Central/Dakota Christian def. Freeman Academy-Marion, 25-21, 25-13, 25-16
Avon def. Tripp-Delmont-Armour, 27-25, 25-13, 25-18
Brandon Valley def. Sioux Falls Lincoln, 20-25, 25-21, 25-19, 25-14
Bridgewater-Emery def. Menno, 25-20, 25-23, 27-25
Brookings def. Tea, 25-19, 25-15, 20-25, 25-18
Canton def. Parker, 25-19, 25-11, 25-10
Castlewood def. Waverly-South Shore, 25-13, 25-10, 25-14
Centerville def. Freeman, 25-15, 25-14, 16-25, 25-13
Chester def. Baltic, 25-20, 25-16, 20-25, 25-20
Cheyenne-Eagle Butte def. McLaughlin, 25-19, 25-16, 20-25, 25-14
Clark-Willow Lake def. Wilmot, 25-12, 25-18, 25-18
Colman-Egan def. Estelline-Hendricks, 25-14, 25-15, 19-25, 25-22
Corsica/Stickney def. Sanborn Central-Woonsocket, 28-26, 25-23, 7-25, 12-25, 15-10
Custer def. Sturgis Brown High School, 25-20, 25-14, 28-26
DeSmet def. Deuel, 25-16, 25-16, 25-13
Deubrook def. Flandreau, 25-15, 25-22, 25-23
Elk Point-Jefferson def. West Central, 25-14, 18-25, 25-16, 25-9
Faith def. Hettinger-Scranton, N.D., 20-25, 25-16, 25-23, 25-15
Gayville-Volin High School def. Scotland, 25-8, 25-13, 25-13
Great Plains Lutheran def. Milbank, 25-18, 25-17, 25-14
Hanson def. Howard, 25-17, 25-14, 25-20
Harding County def. Bowman County, N.D., 25-19, 25-15, 25-12
Highmore-Harrold def. Sunshine Bible Academy, 25-13, 25-14, 25-15
Hill City def. Douglas, 25-10, 25-18, 25-15
Hitchcock-Tulare def. Faulkton, 25-18, 20-25, 25-17, 25-13
Ipswich def. Sully Buttes, 25-17, 25-20, 25-13
Lakota Tech def. Todd County, 23-25, 25-9, 25-23, 25-16
Lemmon High School def. McIntosh High School, 25-12, 25-13, 25-18
Lyman def. Colome, 25-11, 25-18, 24-26, 25-12
Mobridge-Pollock def. North Central, 25-22, 25-18, 25-13
Mt. Vernon/Plankinton def. Ethan, 25-23, 28-26, 25-12
Northwestern def. Herreid-Selby, 28-26, 25-6, 25-9
Redfield def. Leola-Frederick High School, 25-12, 25-10, 25-12
Santee, Neb. def. Marty
Sioux Falls Christian def. Madison, 25-5, 25-14, 25-14
Sioux Falls Jefferson def. Sioux Falls Washington, 15-25, 25-18, 27-25, 25-21
Spearfish def. Rapid City Christian, 25-11, 25-16, 25-14
St Thomas More def. Belle Fourche, 25-16, 25-11, 25-7
T F Riggs High School def. Mitchell, 25-18, 21-25, 25-22, 23-25, 15-13
Timber Lake def. Potter County, 26-24, 20-25, 25-23, 25-18
Vermillion def. Bon Homme, 25-22, 11-25, 25-20, 26-24
Wagner def. Platte-Geddes, 23-25, 23-25, 25-20, 25-8, 15-9
Warner def. Miller, 25-14, 25-21, 26-24
Watertown def. Huron, 26-24, 25-16, 21-25, 25-16
White River def. Wall, 15-25, 24-26, 25-22, 26-24, 16-14