No. 7 Meade 69, Southern 49: Bruce Spruell had a game-high 15 points to lead the host Mustangs (18-1) past the Bulldogs (8-11).
Meade jumped out to a 17-7 lead after the first quarter and never looked back.
No. 10 Dulaney 89, Pikesville 75: Roy Sweets had a game-high 28 points and the visiting Panthers (7-12) made 10 3-pointers, but fell to the Lions (15-3).
No. 11 C. Milton Wright 70, Aberdeen 59: Corey Bays scored 26 points to power the host Mustangs (16-1) past the Eagles (9-10).
Benjamin Franklin 92, Maryland Academy of Health and Technology Sciences 80: Darius Miller scored 25 points to lead the host Bayhawks (16-4) past the Panthers.
Ben Franklin built a 33-24 halftime lead.
Girls basketball
No. 4 Milford Mill 70, Hereford 7: Dionna White scored 32 points and became the host Millers (17-1) all-time leading scorer with 1,811 career points.
No. 12 Archbishop Spalding 57, No.8 Seton Keough 47: The Cavaliers (15-11) used a 14-9 run in the second quarter to outdistance the host Gators (14-10) in an Interscholastic Athletic Association of Maryland A Conference quarterfinal.
Victoria Reynolds finished with a game-high 20 points for Spalding.
Boys swimming
St. Mary's wins: The Saints captured seven of 11 individual and relay events to win theMaryland Interscholastic Athletic Association B Conference swimming championship.
Freshman Jimmy Hayburn paced the Saints with victories in the 50- and 100-yard freestyle events and was part of two championship relays (200 medley and 400 freestyle).