Aberdeen Roncalli def. Miller, 25-14, 25-22, 22-25, 25-27, 15-12

Arlington def. Colman-Egan, 25-15, 25-21, 25-13

Bridgewater-Emery def. Howard, 25-15, 25-9, 25-12

Chester Area def. McCook Central/Montrose, 13-25, 25-23, 25-10, 25-21

Dakota Valley def. Tri-Valley, 25-13, 25-16, 25-7

Dell Rapids def. Elk Point-Jefferson, 28-26, 25-23, 19-25, 25-21

Dell Rapids St. Mary def. Oldham-Ramona/Rutland, 25-22, 14-25, 25-21, 25-16

Deubrook Area def. Lake Preston, 25-21, 25-23, 25-9

Deuel def. Milbank Area, 23-25, 25-16, 22-25, 25-18, 15-12

Douglas def. Custer, 25-19, 25-18, 17-25, 25-20

Florence-Henry def. Flandreau, 23-25, 25-22, 25-15, 31-33, 15-13

Hamlin def. Great Plains Lutheran, 25-12, 34-32, 25-12

Highmore-Harrold def. James Valley Christian, 26-24, 23-25, 25-15, 16-25, 15-13

Hills-Beaver Creek (Minn.) def. Viborg-Hurley, 22-25, 25-19, 25-18, 15-25, 15-13

Ipswich def. Groton, 23-25, 25-13, 25-17, 26-24

Mobridge-Pollock def. Herreid/Selby Area, 25-11, 25-20, 25-18

Mount Vernon/Plankinton def. Wagner, 25-19, 25-21, 18-25, 25-13

Platte-Geddes def. Todd County, 25-9, 25-12, 25-15

Rapid City Stevens def. Rapid City Central, 28-26, 25-11, 25-17

Redfield def. Hitchcock-Tulare, 25-12, 25-20, 14-25, 25-19

Sanborn Central/Woonsocket def. Hanson, 25-15, 25-16, 25-20

Sioux Falls Roosevelt def. Sioux Falls Jefferson, 25-19, 25-21, 25-17

Sioux Valley def. Parker, 19-25, 26-24, 25-21, 28-26

Stanley County def. Chamberlain, 24-26, 25-18, 25-19, 25-18

St. Thomas More def. Sturgis, 25-21, 25-18, 26-24

Tripp-Delmont/Armour def. Menno, 25-15, 25-21, 25-15

Wall def. Jones County, 25-22, 19-25, 25-15, 19-25, 15-6

Warner def. Webster Area, 25-13, 25-17, 25-13

White River def. Lyman, 25-14, 25-10, 25-7