LISBON — The Lisbon High School football team must be made of some pretty strong rubber.

The bend-don’t-break defense typical of coach Dick Mynahan’s squads over the years was on full display again Saturday as the Greyhounds were outgained, outweighed and physically outmatched position by position on both sides of the ball.

But somehow, like it always seems to do, Lisbon wriggled its way out of jam after jam, using three end-zone interceptions and eight costly fumbles by the OOB offense to keep the Seagulls off the board long enough for Tobey Harrington to find the end zone late in the fourth quarter, earning for the home-standing Greyhounds an improbable 8-0 victory at Thompson Field.

“We’re in good condition, and we just kept coming back and kept coming back,” Mynahan said. “At the end, that paid off for us … I think Old Orchard really came up and dominated this game, but we made the big plays when it mattered the most.”

The first-half numbers read like the script of a blowout. The Gulls racked up 106 on 32 rushes and added 17 more through the air on one reception, earning eight first downs. The Greyhounds gained just 14 on 11 total plays, and their only first down came on a penalty to OOB.

But the most important figures were in the points column, where the bulbs on the aging scoreboard illuminated identical zeroes for both home and visitor.

The Seagulls tried to hitch a ride on the back of bruising seniors Brandon Ouellette and John Regis, two towering backs who measure upwards of 6-foot-3 and 235 pounds. Somehow, the Lisbon defense, littered with a gaggle of players half that size, found a way to slow them down, and even stop them more often that not. Ouellette finished with 25 carries for 49 yards, while Regis topped out at 32 yards on 10 carries.

“We put in a little single-wing stuff, we have some personnel we can interchange,” Old Orchard Beach coach Dean Plante said. “Our regular quarterback is a little dinged up, so were limited a little bit in our packaging.”

The bigger stat, still, on the defensive side of the ball were the three interceptions in the end zone, one each by Josh Pomerleau, Harrington and Scott Eck.

“You can’t turn the ball over against a team like Lisbon,” Plante said. “They’re always very disciplined and well-coached. Those are the things, come fourth quarter, that gives a team like that momentum.”

In one sequence, late in the third quarter, Harrington picked off a Ouellette toss. Two plays later, Ouellette grabbed a ball out of the air intended for Harrington over the middle, and three plays after that, the Greyhounds again regained possession, this time on Eck’s pick on a tipped ball near the sideline.

“All of those interceptions, they got the momentum swinging out way,” Harrington said.

On the other side of the ball, Old Orchard Beach held Harrington to just 20 yards on three carries in the opening half, but after an adjustment to the blocking scheme, Mynahan’s linemen opened up hole after hole for the speedy back.

“Our line kicked it into a second gear and we drove it right down the field,” Harrington said. “(Ouellette and Regis) were huge, but we ran it outside and wore them down.”

“We over-balanced our line, and put our best linemen to one side,” Mynahan said. “We put our best guy, Joe Doughty, on (Regis). We’d been working on (the overload) all week, and we wanted to bring it in at a certain time, and we used it then, in the second half.”

Harrington powered his way to 69 yards on 13 carries in the second half, including the game’s only score, a six-yard scamper from the left hash to the left corner of the end zone.

“I saw (Ouellette) coming around, and I knew if I could beat him I had it,” Harrington said. “He put his arm out, I shoved it away and flew in for six. I was so happy.”

Lisbon High School’s Josh Pomerleau intercepts a pass in the end zone intended for Matt MacDowell of Old Orchard Beach High School during the second quarter in Lisbon on Saturday.

Lisbon High School’s Matt Nicholson, right, and Scott Eck, left, stop Brandon Ouellette of Old Orchard Beach for a loss on fourth down during the first quarter in Lisbon on Saturday.