Deubrook def. Sioux Valley, 23-25, 27-25, 25-22, 19-25, 15-9

Elk Point-Jefferson def. Akron-Westfield, Iowa, 25-14, 25-9, 25-21

Oldham-Ramona/Rutland def. Centerville, 25-23, 25-10, 19-25, 25-22

Spearfish def. Hot Springs, 25-15, 25-10, 25-17

Watertown def. Yankton, 25-13, 25-17, 24-26, 25-20

Andes Central def. Irene-Wakonda, 25-15, 25-17, 23-25, 25-14

Arlington def. Winner, 17-25, 25-21, 25-14, 19-25, 15-11

Elkton-Lake Benton def. Chester, 25-19, 25-21, 25-16

Parker def. Milbank, 25-14, 26-24, 25-11

Sioux Falls O'Gorman def. Warner, 25-23, 25-16, 25-19

Wagner def. Alcester-Hudson, 21-25, 25-23, 25-22, 25-21

Sioux Falls Lincoln def. Grand Forks Central, N.D., 25-12, 25-17

Sioux Falls Lincoln def. Devils Lake, N.D., 25-15, 25-20

Sioux Falls Lincoln def. Valley City, N.D., 25-15, 25-22

Gayville-Volin def. Walthill, Neb., 25-6, 25-9

Scotland def. Walthill, Neb., 25-9, 25-10

Herreid/Selby Area def. McIntosh, 25-13, 25-14

Herreid/Selby Area def. Timber Lake, 21-25, 25-17, 25-11

Potter County def. McIntosh, 25-14, 25-10

Potter County def. Herreid/Selby Area, 29-27, 25-20

Timber Lake def. McIntosh, 25-6, 25-13

Timber Lake def. Potter County, 25-18, 15-25, 27-25

Faulkton def. Faith, 25-23, 25-19

Faulkton def. Highmore-Harrold, 27-25, 25-13

Highmore-Harrold def. Faith, 25-6, 25-12

Ipswich def. Faulkton, 25-21, 25-23

Ipswich def. Highmore-Harrold, 25-23, 25-18

Ipswich def. Faith, 25-15, 25-14

McIntosh def. Faith, 25-19, 25-11

Highmore-Harrold def. Timber Lake, 25-23, 22-25, 25-21

Faulkton def. Herreid/Selby Area, 25-21, 25-19

Ipswich def. Potter County, 21-25, 25-21, 25-22

Lemmon def. Tiospaye Topa, 25-4, 25-6, 25-13

Lemmon def. Newell, 25-18, 25-9, 25-12

Beresford def. Eureka/Bowdle, 2-0

Beresford def. Grant-Deuel, 2-0

Grant-Deuel def. Eureka/Bowdle, 2-0

Miller def. Beresford, 2-0

Miller def. Grant-Deuel, 2-0

Miller def. Eureka/Bowdle, 2-0

Redfield/Doland def. Beresford, 2-0

Redfield/Doland def. Miller, 2-0

Redfield/Doland def. Grant-Deuel, 2-0

Redfield/Doland def. Eureka/Bowdle, 2-0

Belle Fourche def. Waverly-South Shore, 2-0

Belle Fourche def. Britton-Hecla, 2-0

Belle Fourche def. Leola/Frederick, 2-0

Britton-Hecla def. Waverly-South Shore, 2-0

Britton-Hecla def. Leola/Frederick, 2-0

Northwestern def. Britton-Hecla, 2-0

Northwestern def. Waverly-South Shore, 2-0

Northwestern def. Belle Fourche, 2-0

Northwestern def. Leola/Frederick, 2-0

Waverly-South Shore def. Leola/Frederick, 2-1

Miller def. Belle Fourche, 2-0

Northwestern def. Redfield/Doland, 2-1