Ensworth found itself in an unfamiliar position at halftime -- down by seven.
But the Tigers capitalized on Battle Ground Academy mistakes in the second half, rallying for a 35-7 win on Friday night.
Ensworth (6-0, 3-0 DII-AA East/Middle), ranked No. 1 in Division II, extended its win streak to 14 games.
Tigers running back Corn Elder rushed for 193 yards and three touchdowns on 30 carries.
"(BGA) played well, and I think we kind of overlooked them," Elder said. "We played pretty bad and there were some bad calls, but I just knew if we played harder in the second half we could come out with the victory. (BGA) had nine in the box, but I was dancing and in the second half I just ran straight downhill."
Unranked BGA (4-2, 1-2) took a 7-0 lead when Keenan Bass ran it in from 18 yards on fourth-and-8 early in the second quarter.
His touchdown came six plays after Ronald Cleveland's 39-yard punt return set the Wildcats up at the Ensworth 40.
BGA drove to the Ensworth 15 after Bass' 16-yard run on its first possession of the second half, but lost the ball when Bass fumbled on the play.
Ensworth scored touchdowns on its last five possessions to pull away.
Three scores were set up by mistakes in BGA's punting game, including two fake punts that failed inside the Wildcats 35. Ross Grossvenor's 4-yard punt gave Ensworth the ball at the BGA 18 early in the fourth quarter.
"We had a bunch of mistakes early," Ensworth coach Ricky Bowers said. "We were sloppy, we had penalties. In football, maybe more so than any other game, you have to be ready emotionally, and I don't think I did a very good job of getting us ready. But we'll work on that."
Ensworth held Bass to 47 yards, 111 below his average, on 21 carries.
"We were excited to play them in the first half, and we expected to win," Bass said. "They're the top team in the (state), and we wanted to beat them. They outplayed us, and they're a great team."
Myles Pasley, one of Ensworth's leading receivers, dislocated his shoulder early in the first quarter and did not return.
"We were trying to minimize some of the things Ensworth does well in the first half," BGA coach Roc Batten said. "They've got a great offensive line and we were trying to figure out a way to take Corn away and get somebody else to beat us. We just tried to load the box. "