Colby Dessaure scored a career-high 22 points and West Potomac improved to 4-0 in the district with a 64-56 victory over Hayfield.
Overcoming illness and a tough Marshall squad, Edison's win on Friday night puts them along in first place in the National District.
The West Potomac boys and girls basketball teams swept rival Mount Vernon on Friday, with Wolverine coach David Houston III picking up his 200th win.
Depsite losing three 1st-team All-District players to graduation, West Potomac's experienced lineup is confident they can keep the Wolverines on top.
Mount Vernon battled back to force overtime against Lake Braddock in the Occoquan Region semifinals on Saturday, but came up just short.
Mount Vernon put up 41 points in the first half against Justice en route to an easy playoff win -- the school's first since 2008.
Mount Vernon will compete in the playoffs for a fourth straight season tonight when the Majors host Justice in the opening round of the Region C bracket.
Mount Vernon went on the road Friday night and took out rival West Potomac for the Majors' second straight win in the Battle of the Highway series.
Mount Vernon returns offensive stars Fonnae Webb and Jordyn Reid as the Majors look to conquer a tougher schedule and hopefully host a playoff game.
Led by senior quarterback Chase Soper, the 2018 Gunston District Offensive Player of the Year, Hayfield is looking to repeat as district champions.