Portageville (3-0) allowed its first points of the season but remained unbeaten and kept host Chaffee (0-4) winless.
The Red Devils trailed 20-6 at halftime and the Bulldogs pulled away in the second half.
""We played a pretty good first half but in the second half it came apart on us," Chaffee coach Allan Horrell said.
Chaffee's only touchdown came in the first quarter on a 40-yard pass from Sam Burnett to James Reischman. Burnett completed eight of 14 passes for 97 yards. Reischman had three receptions for 76 yards.
Portageville piled up 345 total yards -- including 319 rushing -- while Chaffee had 144 yards, with just 47 on the ground.
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