Albert Smith and Billy Mulcahy combined to score 36 of Dulaney's 39 second-half points, as the host Lions (19-4) edged Eleanor Roosevelt from Prince George's County, 64-61, in a Class 4A, Region II quarterfinal playoff game last night.
Smith scored a game-high 32 and Mulcahy added 16 for Dulaney, which will visit High Point in a semifinal game on Thursday at 7.
In other regional quarterfinal games:
Damion Cannon (8 points) and Derrick Newton (7) scored all but two of Northwestern (15-5) of Prince George's County's fourth-quarter points en route to a 58-53 victory over Woodlawn (16-4) in Class 4A, Region II game.
Maron Moss scored 17 points and Marcus Nelson added 13, as DuVal defeated South Carroll (12-11), 51-47, in a Class 3A, Region III game. Bryan Stauch led South Carroll with 19 points.
Jimmette Lewis scored 15 and Nate Smith added 14, leading host Parkville (17-4) past Bel Air (11-12), 73-44, in a Class 3A, Region III contest.
Tony Yanero scored five of his 18 points in overtime to lead host Mount Hebron (17-6) past Hereford (12-11), 66-60, in a Class 2A, Region II game.
Steve Chaires scored 27, as Fallston (11-12) defeated visiting Joppatowne (8-13), 62-49, in a Class 1A, Region III game.
George Bradford scored 20, as Wilde Lake (12-10) overcame a 21-8 first quarter deficit to defeat visiting Sparrows Point (3-17), 90-70, in a Class 1A, Region II game.
Tikki Nicholson scored 18 and Sonia Keiner added 13, as No. 7 Hammond (18-4) routed visiting Pikesville (6-13), 70-16, in a Class 2A, Region II game.
Loch Raven (17-4) advanced to the Class 2A, Region II semifinals against top-ranked Mount Hebron by defeating visiting Patapsco (10-10), 59-42. Shelley Kales scored 14 for the Raiders.
Krista Fulton scored a game-high 22 and Mona Jackson and Camille Powell added 15 apiece, as No. 9 Howard (19-4) routed visiting Randallstown (12-8), 74-43, in a Class 3A, Region Iii game.