At Winslow, Zach Guptill rushed for 86 yards and two touchdowns as the undefeated Black Raiders pulled away in the fourth quarter.
This was a rematch of the 2012 Class C state championship game won by Foxcroft 22-20.
A 6-yard TD run by quarterback Hunter Law pulled Foxcroft within 21-20 late in the third period, but Guptill scored from 5 yards out and Dylan Hapworth added a 34-yard field goal to help Winslow improve to 7-0.
Foxcroft is 4-3 after absorbing its third straight defeat.
Guptill had a 16-yard scoring run in the second quarter to rally Winslow to a 7-7 halftime tie, and quartetback Bobby Chenard scored on a 36-yard run for the Black Raiders to forge a 14-14 third-quarter tie.
Luke Fredette gave Winslow the lead for good later in the period when he returned a Foxcroft fumble 20 yards for a touchdown.
Foxcroft took a 7-0 first-quarter lead on a 1-yard run by fullback Corey Bjornson. The Ponies also scored first in the second half, this time on a 36-yard run by Bjornson to give FA a 14-7 edge.
Peter Boyer paced the Foxcroft offense with 138 yards on 22 rushes, while Bjornson added 90 yards on 13 tries.
The Ponies committed three turnovers during the contest compared to none for Winslow.