Aberdeen Central def. Brookings 25-19, 25-18, 26-24
Alcester-Hudson def. Menno, 16-25, 26-15, 21-25, 25-15, 15-10
Belle Fourche def. Sturgis Brown, 25-22, 25-5, 25-23
Canistota def. Oldham-Ramona/Rutland, 25-12, 25-18, 25-15
Canton def. Beresford, 25-9, 25-10, 25-10
Castlewood def. Clark/Willow Lake, 25-19, 25-20, 25-19
DeSmet def. Howard, 25-15, 17-25, 12-25, 25-23, 15-7
Dell Rapids def. Elkton-Lake Benton, 25-17, 25-9, 25-14
Deuel def. Sioux Valley, 18-25, 20-25, 25-22, 25-22, 17-15
Douglas def. St. Thomas More, 25-11, 25-13, 25-18
Florence/Henry def. Redfield, 25-22, 25-14, 25-11
Freeman def. Sanborn Central/Woonsocket, 25-20, 25-19
Hanson def. Avon, 25-23, 23-25, 25-19
James Valley Christian def. Iroquois/ Lake Preston Co-op, 25-17, 25-20, 25-16
McCook Central/Montrose def. Bridgewater-Emery, 25-22, 25-22, 18-25, 21-25, 15-11
Miller def. Kimball/White Lake, 25-18, 25-15, 25-22
Newell def. Lead-Deadwood, 25-18, 25-9, 25-18
Northwestern def. Aberdeen Roncalli, 19-25, 25-20, 25-21, 25-13
Parker def. Irene-Wakonda, 25-12, 25-21, 25-21
Parkston def. Mt. Vernon/Plankinton, 25-22, 22-25, 25-19, 25-19
Platte-Geddes def. Freeman Academy/Marion, 25-20, 25-8
Sully Buttes def. Jones County, 25-21, 25-21, 25-23
Tripp-Delmont/Armour def. Colome, 25-6, 25-9, 25-9
West Central def. Vermillion, 24-26, 25-14, 25-14, 13-25, 15-8
Wilmot def. Sisseton, 25-15, 25-19, 25-19
Wolsey-Wessington def. Arlington, 23-25, 25-20, 25-11, 25-20