Avon def. Bridgewater-Emery, 27-25, 23-25, 25-20, 25-20
Belle Fourche def. Red Cloud, 25-6, 25-13, 25-15
Brandon Valley def. Mitchell, 14-25, 25-18, 28-26, 20-25, 15-12
Britton-Hecla def. Redfield/Doland, 26-24, 25-16, 25-21
Canton def. Garretson, 25-16, 25-23, 25-22
Centerville def. Freeman Academy, 23-25, 25-12, 25-23, 25-17
Chamberlain def. Mt. Vernon/Plankinton, 25-19, 25-21, 25-23
Chester def. Tea Area, 25-15, 27-25, 25-20
Cheyenne-Eagle Butte def. McIntosh, 25-20, 15-25, 25-17, 24-26, 15-9
Custer def. Spearfish, 27-25, 21-25, 25-19, 20-25, 15-12
Dakota Valley def. Harrisburg, 25-13, 25-17, 25-17
Dell Rapids St. Mary def. Estelline, 25-13, 12-25, 25-13, 19-25, 15-12
Deuel def. Clark/Willow Lake, 25-22, 25-14, 25-21
Edgemont def. Sioux County, Neb., 25-18, 16-25, 19-25, 25-19, 17-15
Elkton-Lake Benton def. Deubrook, 22-25, 25-14, 23-25, 25-18, 15-9
Faith def. Bison, 26-24, 25-21, 25-21
Gordon/Rushville, Neb. def. Bennett County, 26-24, 25-20, 25-22
Grant-Deuel def. Waubay, 25-15, 25-17, 25-17
Great Plains Lutheran def. Tiospa Zina Tribal, 25-14, 25-19, 25-22
Hamlin def. Milbank Area, 23-25, 19-25, 26-24, 25-13, 15-11