Newton, the defending Class 3A, Division II state champion, lived up to its billing on Friday night at the Historic Tomato Bowl.
The Eagles (11-1) scored a 48-14 victory over Troup in a Class 3A, Division II, Region III Area game.
Newton advances to face Daingerfield, who bombed Blue Ridge, 36-7, on Friday, in a regional quarterfinal test late next week.
The Tigers, the third-place team out of District 10-3A-II, end the year with a record of 7-5.
Newton's punishing ground game enabled the Eagles to hammer out a 20-0 advantage before the Tigers loosened the Newton defense up by getting the passing game going.
Troup got on the scoreboard with 6:41 left in the first half when Desmon Deason hauled in an 8-yard touchdown pass from Jordan Elliott near the right pylon in the end zone.
After Eddie Rojo's point after touchdown kick, the Eagle lead was cut to 20-7.
Troup's score was set up by a 34-yard reception by Jaden Lewis on a fourth and 10 play from the Eagle 44-yard line.
The Tiger defense forced Newton to turn the ball over on downs on the Eagles' next possession, which seemed to give the Maroons a boost going into halftime, down by only two touchdowns.
The tide turned quickly in the second half when the Eagles took the opening kick off and needed just 41 seconds to score another touchdown.
Deanthony Gatson, the Eagles' leading rusher for the season, did the honors by scoring from 37-yards out.
After a failed PAT, Newton led, 26-7.
Gatson carried the ball 23 times and picked up 214 yards and scored two touchdowns.
He teamed with Zac Gulley, who had 8 carries for 191 yards and a touchdown, to provide the Eagles with a lethal one-two punch.
Newton extended the lead to 34-7 before the Tigers would be able to sniff out the end zone once again.
Elliott threw a dart to Lewis, who was running a go route down the right side line, to account for a 29-yard touchdown that came with 9:32 left in the contest.
The Eagles came back and score on the ensuing march when Valdarion Fowler plowed in to score from a yard out that gave Newton a comfortable, 40-14 advantage. The touchdown was Fowler's second of the evening.
Most of Troup's offense came through the air where Elliott went 9-29-0 for 118 yards and two touchdowns.
Newton's defense held Troup to just 53 net yards rushing in the game.
With the win, Newton snapped the Tigers' six-game winning streak.
Seniors that played in the their final game for Troup included Parker Calltharp, Jordan Elliott, Calob Smith, Desmon Deason, Jason Gossett, Austin Starkey, Antony SanTamaria, Jaden Lewis, Max Hale, Gonzalo Rojo, Garrett Towrey, Daniel Leon, Eddie Rojo and Coltin Taylor.