No. 15 City fumbled the opening kickoff and things got worse from there as Edmondson capitalized on five turnovers and shut out the host Knights, 40-0, on Friday.
The Red Storm (5-3) scored 20 points in the first quarter, starting with a 3-yard touchdown run by Darrell Woods, set up by the fumbled kickoff two minutes into the game.
Edmondson quarterback Daniel Williams completed seven of 14 passes for 137 yards and three touchdowns. City fell to 6-2.
No. 4 Meade 42, North County 0: Daryl Pate completed seven of 13 for 185yards and three touchdowns to lead the visiting Mustangs (7-1) past the Knights (1-6).
Meade led 28-0 after the first quarter.
St. Mary's 36, No. 6 St. Paul's 34: Trailing 34-33 in the fourth quarter, Jake Ellis made a field goal as the visiting Saints (4-4, 2-2 Maryland Interscholastic Athletic Association BConference) upset the Crusaders (7-1, 3-1).
Earlier in the quarter, Ellis completed a 5-yard touchdown pass to Hunter Sears.
No. 7 River Hill 49, Oakland Mills 6: The host Hawks (7-1) scored 35 unanswered points and the Scorpions fell to 3-5.
The Hawks' Aiden Gelb rushed for two touchdowns, and Alex Potocko made all seven extra-point attempts.
No. 10 Archbishop Curley 34, Severn 7: Deonte Harris had six carries for 115 yards and two touchdowns to lead the visiting Friars (8-1, 3-1 MIAA BConference) past the Admirals (4-4, 1-3).
Michael Bucci scored all of Severn's points, running for a 2-yard touchdown and kicking the extra point.
Curley next faces host John Carroll at 7p.m. Friday. The Friars clinched a spot in the B Conference championship game with the win over Severn.
No. 14 Perry Hall 55, Kenwood 28: Jeff Iweh completed 10 of 13 passes for 124 yards and four touchdowns and rushed for 72 yards and a touchdown to power the visiting Gators (7-1) past the Bluebirds (5-3).
Perry Hall led 14-0 before Kenwood returned a kickoff to the Perry Hall 20, and the ensuing drive cut the lead to 14-7. The Gators scored 28points in the second quarter to pull away.
Carver 55, Maritime Industries 14: Chris Jones had 220 all-purpose yards and scored four touchdowns to power the visiting Bears (8-0) past the Anchors (3-4).
Jones scored on an 85-yard kickoff return, on a 40-yard interception return and on runs of 10 and 28 yards. Tyrell Jessup had eight carries for 109 yards and two touchdowns for Carver.
Archbishop Spalding 28, Georgetown Prep 24: Trailing 24-21, the visiting Cavaliers (6-2) rallied as Ronnie Beswick had an 83-yard kickoff return with 11:47 left to take the lead for good. The Little Hoyas fell to 4-4.
No. 1 McDonogh 5, No. 6 Archbishop Curley 0: The host Eagles (18-0, 14-0 MIAA A Conference) were led by Connor Smith with two goals and an assist in their 13th shutout, beating the Friars (10-9, 7-8).
No. 9 Loyola 1, No. 10 Gilman 1, 2OT: For the second time this season, the Dons (9-8-2, 6-7-2) and Greyhounds (8-6-3, 6-6-3) played to a 1-all tie.
Gavin Barger converted on a free kick to give Loyola a 1-0 lead with 28 minutes left in the game.
Peter Brown tied the score for Gilman with six minutes left.
No. 12 John Carroll 2, Archbishop Spalding 0: Camillo Fortunato and Dylan Kidd each scored a goal to lead the visiting Patriots (11-9-2, 6-8-1) past the Cavaliers (5-12-2, 3-11-1).
No. 11 Bel Air 10, Dundalk 0: Natalie Decker had a hat trick to lead the host Bobcats (12-3) past the Owls (2-10) in a Class 3A North sectional quarterfinal.
Bel Air faces North Harford (5-3), a 1-0 winner over Aberdeen, on Tuesday.