Atholton, Oakland Mills and Wilde Lake school teams will find themselves in new classifications starting next September.
That will be good news for some coaches and bad news for others, depending on the sport.
Atholton, a 2A school, will move up to a 3A classification. Oakland Mills drops from 3A to 2A, and Wilde Lake drops from 2A to 1A. The other five county high schools remain in their previous classifications.
Every two years, the state's public high schools are re-classified based on the student populations in grades 9, 10 and 11. A higher classification usually, but not always, reflects a higher level of competition for teams.
Atholton soccer coach Reg Hahne said he looks forward to moving up.
"It will enable us to schedule better teams and higher classified teams that wouldn't play us before, because they didn't get enough points by playing us," he said.
The state playoff system is based on points, with a higher point total awarded for beating teams in higher classifications.
For instance, a win against a Class 4A school counts for eight points, a 3A school seven points, a 2A school six points and a 1A school five points.
Atholton joins Howard High and Centennial as the county's only Class 3A schools.
Oakland Mills, Glenelg, Mount Hebron and Hammond will be Class 2A.
Wilde Lake will be the lone 1A school.
The regional alignments are not definite yet, but the proposed alignments are known.
Howard, Centennial and Atholton are in Class 3A Region III, along with South Carroll, Linganore, Thomas Johnson, DuVal, Bladensburg and Randallstown.
Mount Hebron, Hammond and Oakland Mills are proposed for Class 2A Region II, along with Patapsco, Loch Raven, Overlea, Towson, Pikesville, Chesapeake and Hereford.
Glenelg is proposed for Class 2A Region I, along with Allegany, Fort Hill, Middletown, South Hagerstown, North Hagerstown, Southern (Anne Arundel County), Walkersville, North Carroll and Liberty.
And Wilde Lake is proposed for Class 1A Region II, along with Brunswick, Catoctin, Francis Scott Key, Milford Mill, Owings Mills, Poolesville and Sparrows Point.
The move down should make it easier for the Wildecats to win state titles in football and basketball, sports at which the school has traditionally excelled.
Since they will be locked into a county schedule with bigger schools, the Wildecats should have no problems scheduling to accumulate enough points.