The Riverdale girls defeated Cumberland County 79-58 at home while Stewarts Creek went to undefeated Bradley Central and pulled out a 55-49 win.
Alexis Whittington led the Lady Warriors with 22 points. Anastasia Hayes had 17 and Amanda Whittington scored 15.
Brandi Ferby scored 16 for the Lady Red Hawks while twin sister Brianah chipped in 15. It was Bradley Central's first loss of the year and first at home in 44 games.
Stewarts Creek is first up to play Wednesday. They'll battle Dickson Co. at 11:30am. It's followed at 1:15pm by Riverdale vs. Morristown. Winners will advance to play in the semifinals on Friday.