Atholton 55, Howard 35: Maxwell Murray scored 14 points to lead the host Raiders (9-10) past the Lions (3-14).
Douglass 73, Patterson 64: Tayshawn Walker scored 15 points to lead the host Ducks (7-10) past the Clippers (4-12).
No. 2 McDonogh 77, No. 6 John Carroll 52: Aleah Nelson scored a game-high 20 points and Taleah Dixon (11 points) scored her 1,000th career point as the host Eagles (19-3, 7-2 Interscholastic Athletic Association A Conference) beat the Patriots (14-6, 4-5).
Linganore 34, Manchester Valley 33: The Lancers won because they scored first in matches more times (seven) than the Mavericks (six), and advanced to the Class 2A West regional final before losing to host Tuscarora, 45-29.