Class AA
#1 Sioux Falls Washington defeated #8 Huron 60-44 in the quarterfinal round of the Class AA tournament. Huron will move to the Consolation bracket and SF Washington will advance to the semi-final round.
#5 Rapid City Stevens defeated #4 Aberdeen Central 59-38 in the quarterfinal round of the Class AA tournament. Rapid City advances next to the semi-final round, while Aberdeen Central falls to the consolation bracket.
Class A
#1 Aberdeen Roncalli defeated #8 Lennox 48-37 in the class A quarterfinal round. Lennox moves to the consolation side of the bracket, while Aberdeen Roncalli advances to the semi-finals.
#5 Little Wound defeats #4 Clark/Willow Lake 60-54 in the quarterfinal round of Class A. Little Wound advances to the semi-finals and Clark/Willow Lake drops to the consolation bracket.
Class B
#8 Hitchcock-Tulare initiated the first upset of the tournament as they defeated #1 Faith 54-40 in the quarterfinal round of the Class B boy’s basketball tournament. Faith drops to the Consolation bracket while Hitchcock-Tulare advances to the semi-final round.
#5 Hanson defeated #4 Wolsey-Wessington 56-55 in a nail biter affair in the class B quarterfinal round. Hanson advances to the semi-finals and Wolsey-Wessington moves down to the consolation bracket.