Lynchburg - Undefeated E.C. Glass rolled over Harrisonburg 6-0 Monday in the Region 4A North tennis quarterfinals. The Hilltoppers clinched the match in singles as all six players won their matches in straight sets. Nick Daly, Luc Mortemousque, Trent Daly and Moses Hutchison all lost only one game in their two sets, Tom Robertson and Andrew Bowden also won big. Glass improves to 20-and-0 and advances to Wednesday's region semifinals.