The boys Class A and B region basketball pairings have been set. 

The two classes will have region play on Monday, Tuesday and Friday.

The first-round pairings:

Class B

Region 1B

Monday

No. 9 Wilmot vs. No. 8 Britton-Hecla 

Tuesday

No. 1 Aberdeen Christian vs. No. 8 Britton-Hecla or No. 9 Wilmot 

No. 4 Langford Area vs. No. 5 Northwestern 

No. 2 Waubay/Summit vs. No. 7 Leola/Frederick Area 

No. 3 Warner vs. No. 6 Aberdeen Roncalli 

Region 2B

Monday 

No. 9 North Central vs. No. 8 Miller

No. 10 Sunshine Bible Academy vs. No. 7 Sully Buttes

Tuesday

No. 9 North Central or No. 8 Miller vs. No. 1 Lower Brule

No. 4 Ipswich vs. No. 5 Highmore-Harrold

No. 2 Potter County vs. No. 7 Sully Buttes or No. 10 Sunshine Bible Academy

No. 3 Faulkton Area vs. No. 6 Herreid/Selby Area

Region 3B

Monday

No. 9 Lake Preston vs. No. 8 Waverly-South Shore

No. 10 Iroquois/Doland vs. No. 7 Arlington

Tuesday

No. 1 De Smet vs. No. 9 Lake Preston or No. 8 Waverly-South Shore

No. 4 Estelline/Hendricks vs. No. 5 James Valley Christian

No. 2 Castlewood vs. No. 10 Iroquois/Doland or No. 7 Arlington

No. 3 Wolsey-Wessington vs. Hitchcock-Tulare

Region 4B

Monday

No. 9 Colman vs. No. 8 Mitchell Christian

No. 10 Sioux Falls Lutheran vs. No. 7 Bridgewater-Emery

Tuesday

No. 1 Howard vs. No. 9 Colman or No. 8 Mitchell Christian

No. 4 Canistota vs. No. 5 Chester Area

No. 2 Dell Rapids St. Mary vs. No. 10 Sioux Falls Lutheran or No. 7 Bridgewater-Emery

No. 3 Ethan vs. No. 6 Oldham-Ramona/Rutland

Region 5B

Monday 

No. 9 Freeman vs. No. 8 Alcester-Hudson

Tuesday

No. 1 Freeman Academy/Marion vs. No. 9 Freeman or No. 8 Alcester-Hudson

No. 4 Irene-Wakonda vs. No. 5 Scotland

No. 2 Viborg-Hurley vs. No. 7 Menno

No. 3 Centerville vs. No. 6 Gayville-Volin

Region 6B

Monday 

No. 9 Avon vs. No. 8 Kimball/White Lake

No. 10 Colome vs. No. 7 Tripp-Delmont/Armour

Tuesday

No. 1 Platte-Geddes vs. No. 9 Avon or No. 8 Kimball/White Lake

No. 4 Marty vs. No. 5 Corsica-Stickney

No. 2 Burke vs. No. 10 Colome or No. 7 Tripp-Delmont/Armour

No. 3 Gregory vs. No. 6 Wessington Springs

Region 7B

Monday

No. 9 Jones County vs. No. 8 New Underwood

No. 10 Edgemont vs. No. 7 Crazy Horse

Tuesday

No. 1 White River vs. No. 9 Jones County or No. 8 New Underwood

No. 4 Wall vs. No. 5 Oelrichs

No. 2 Lyman vs. No. 10 Edgemont or No. 7 Crazy Horse

No. 3 Philip vs. No. 6 Kadoka Area

Region 8B

Monday

No. 9 Newell vs. No. 8 Tiospaye Topa

No. 10 Takini vs. No. 7 Bison

Tuesday

No. 1 Timber Lake vs. No. 9 Newell or No. 8 Tiospaye Topa

No. 4 Lemmon vs. No. 5 Wakpala

No. 2 Harding County vs. No. 10 Takini or No. 7 Bison

No. 3 Faith vs. No. 6 McIntosh

Class A

Region 1A

Tuesday

No. 8 Sisseton vs. No. 1 Groton Area

No. 5 Florence-Henry vs. No. 4 Milbank

No. 7 Webster Area vs. No. 2 Clark/Willow Lake

No. 6 Redfield vs. No. 3 Tiospa Zina

Region 2A

Tuesday

No. 8 Flandreau Indian vs. No. 1 Flandreau

No. 5 Deuel vs. No. 4 Deubrook Area

No. 7 Great Plains Lutheran vs. No. 2 Sioux Valley

No. 6 Elkton-Lake Benton vs. No. 3 Hamlin

Region 3A

Tuesday

No. 8 Baltic vs. No. 1 West Central

No. 5 Madison vs. No. 4 Garretson

No. 7 Tri-Valley vs. No. 2 Dell Rapids

No. 6 McCook Central/Montrose vs. No. 3 Sioux Falls Christian

Region 4A

Tuesday

No. 8 Parker vs. No. 1 Dakota Valley

No. 5 Elk Point-Jefferson vs. No. 4 Vermillion

No. 7 Beresford vs. No. 2 Tea Area

No. 6 Canton vs. No. 3 Lennox

Region 5A

Tuesday

No. 5 Bon Homme vs. No. 4 Wagner

No. 2 Mount Vernon/Plankinton vs. No. 7 Andes Central/Dakota Christian

No. 6 Sanborn Central/Woonsocket vs. No. 3 Parkston

Friday 

No. 1 Hanson vs. No. 5 Bon Homme or No. 4 Wagner

Region 6A

Tuesday

No. 8 McLaughlin vs. No. 1 Winner

No. 5 Cheyenne-Eagle Butte vs. No. 4 Mobridge-Pollock

No. 7 Crow Creek vs. No. 2 Stanley County

No. 6 Dupree vs. No. 3 Chamberlain

Region 7A

Tuesday

No. 5 Bennett County vs. No. 4 Todd County

No. 7 St. Francis vs. No. 2 Red Cloud

No. 6 Pine Ridge vs. No. 3 Little Wound

Friday

No. 1 Lakota Tech vs. No. 5 Bennett County or No. 4 Todd County

Region 8A

Tuesday

No. 5 Custer vs. No. 4 Hot Springs

No. 7 Lead-Deadwood vs. No. 2 Rapid City Christian

No. 6 Hill City vs. No. 3 Belle Fourche

Friday

No. 1 St. Thomas More vs. No. 5 Custer or No. 4 Hot Springs