Aberdeen Christian def. Britton-Hecla, 23-25, 26-24, 25-21, 22-25, 15-5

Aberdeen Roncalli def. Deuel, 25-9, 25-16, 25-18

Alcester-Hudson def. Viborg-Hurley, 25-15, 25-20, 25-21

Avon def. Gayville-Volin, 15-25, 25-23, 22-25, 25-14, 15-13

Baltic def. Canton, 25-21, 25-22, 25-19

Bridgewater-Emery def. Centerville, 18-25, 25-16, 25-19, 25-22

Canistota def. Freeman, 26-24, 25-18, 25-13

Chester def. Arlington, 25-13, 26-24, 25-13

Clark/Willow Lake def. Sisseton, 21-25, 25-22, 14-25, 25-19, 15-9

Dakota Valley def. Tea Area, 26-24, 24-26, 25-20, 25-14

Elkton-Lake Benton def. Estelline-Hendricks, 25-19, 25-17, 25-19

Ethan def. Tripp-Delmont/Armour, 25-21, 25-13, 25-13

Groton Area def. Faulkton Area, 25-23, 25-12, 25-21

Hanson def. McCook Central/Montrose, 25-21, 25-20, 25-17

Herreid/Selby Area def. Ipswich, 25-11, 25-21, 25-23

Hot Springs def. Oelrichs, 25-15, 25-17, 25-19

Kimball/White Lake def. Colome, 25-12, 25-13, 25-11

Leola-Frederick Area def. Sunshine Bible Academy, 25-9, 25-17, 25-12

Lyman def. Chamberlain,  20-25, 18-25, 25-12, 25-19, 15-9

Northwestern def. North Central, 25-11, 25-13, 25-20

Platte-Geddes def. Winner, 23-25, 25-10, 25-11, 25-15

Sioux Falls Christian def. Lennox, 25-23, 25-12, 22-25, 25-9

Vermillion def. Parker, 25-14, 25-22, 25-7

Wagner def. Burke, 25-22, 25-17, 25-11

Waverly-South Shore def. Tiospa Zina, 18-25, 15-25, 25-16, 25-18, 15-8

West Central def. Tri-Valley, 25-14, 21-25, 25-11, 21-25, 15-7

White River def. St. Francis, 25-10, 25-19, 25-5

Wolsey-Wessington def. Redfield, 25-14, 25-9, 25-19