In a meeting of future Division I-AA opponents, Greg Kovar threw for 301 yards and three touchdowns, two in the first half, as Wagner defeated Dayton 19-3.
John Chaney and Keith Johnson each caught 22-yard touchdown passes in the first half, with Johnson's coming 20 seconds before halftime to give the Seahawks (13-1) a 19-0 lead.
Dayton (11-3) controlled time of possession and took 80 snaps but managed just 2.9 yards of total offense after averaging more than 400 yards per game during the postseason.
"This is just a great feeling," Wagner coach Walt Hameline said following the game. "I don't want to sound like that old coach's cliche, but we really did take them one game at a time. I think that's how we ended up getting the job done today."
Dayton's only points came on a 39-yard Mike Duvic field goal in the third quarter. The Flyers defeated Augustana earlier in the playoffs, ending the juggernaut's 60-game unbeaten streak.
Wagner 38, Rochester 14
Fordham 41, Hofstra 6
Washington and Jefferson 23, Allegheny 17 (OT)
Emory and Henry 49, Ferrum 7
Dayton 52, Capital 28
Augustana 53, Hiram 0
St. John's 7, Gustavus Adolphus 3
Central 17, Menlo 0
Wagner 21, Fordham 0
Emory and Henry 23, Washington and Jefferson 16
Dayton 38, Augustana 36
Central 13, St. John's 3
Wagner 20, Emory and Henry 15
Dayton 34, Central 0
Stagg Bowl XV
Wagner 19, Dayton 3, at Phenix City, Ala.