Aberdeen Christian def. Iroquois/Doland, 25-14, 25-12, 25-14

Aberdeen Roncalli def. Redfield, 25-13, 25-21, 25-18

Avon def. Andes Central-Dakota Christian, 25-13, 25-10, 25-12

Bridgewater-Emery def. Wessington Springs, 25-2, 25-13, 25-10

Britton-Hecla def. Tiospa Zina, 25-12, 25-12, 25-12

Corsica-Stickney def. Centerville, 25-15, 25-18, 25-19

Dakota Valley def. Elk Point-Jefferson, 22-25, 25-17, 25-12, 25-11

Faulkton Area def. North Central, 25-8, 25-8, 25-15

Freeman def. Howard, 25-21, 25-17, 25-22

Great Plains Lutheran def. Tri-State, N.D., 25-19, 25-11, 25-13

Gregory def. Lyman, 25-15, 25-16, 25-19

Hamlin def. Flandreau, 25-20, 26-24, 25-22

Harding County def. Lemmon, 25-21, 25-19, 19-25, 25-19

Highmore-Harrold def Lower Brule, 25-13, 25-6, 26-9

Huron def. Aberdeen Central, 25-22, 25-16, 25-21

Ipswich def. Waubay-Summit, 25-23, 25-11, 25-21

Kimball-White Lake def Burke, 25-17, 25-20, 26-24

Madison def. West Central, 25-16, 25-19, 25-17

Menno def. Freeman Academy/Marion, 25-14, 25-13, 25-14

Milbank def. Sisseton, 25-7, 25-19, 25-15

Miller def. Sully Buttes, 25-11, 25-19, 25-19

Mt. Vernon-Plankinton def. Bon Homme, 25-14, 25-18, 25-16

Northwestern def. Langford Area, 25-11, 25-13, 25-13

Parker def. McCook Central/Montrose, 25-23, 25-21, 15-25, 14-25, 15-13

Phillip def. Kadoka Area, 25-23, 25-23, 17-25, 25-19

Platte-Geddes def. Colome, 25-7, 25-16, 25-20

Rapid City Christian def. Sturgis Brown, 25-20, 25-18, 25-22

Sanborn Central-Woonsocket def. Ethan, 25-19, 21-25, 25-20, 25-19

Scotland def. Canistota, 25-19, 15-25, 18-25, 25-13, 15-13

Sioux Falls Christian def. Dell Rapids, 25-21, 25-14, 25-13

Sioux Falls Lincoln def. Sioux Falls Roosevelt, 25-23, 25-20, 24-26, 16-25, 15-13

Sioux Falls Washington def. Mitchell, 25-18, 25-12, 25-18

Sioux Valley def. Clark/Willow Lake, 25-16, 25-14, 25-18

Wagner def. Chamberlain, 25-10, 25-16, 25-12

Wall def. Crazy Horse, 25-6, 25-4, 25-1

Warner def. Leola-Frederick Area, 25-10, 25-17, 25-10

Webster Area def. Deuel, 22-25, 25-17, 27-25, 15-25, 15-6

White River def. New Underwood, 20-25, 25-16, 25-20, 25-12

Winner def. Valentine, Neb., 25-20, 25-14, 25-23

Yankton def. Beresford, 25-13, 25-14, 25-16