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.