Thornwood turned the ball over on its first four possessions and Lincoln-Way North took advantage on its way to a 49-18 Southwest Suburban Red victory.
Oswego kept Plainfield North out of the end zone as time expired to post a 35-28 win that clinched its fourth straight league title.
Quarterback Carter Turnquist lofted a 27-yard touchdown pass to Zach West to help pull out a 24-21 win, keeping Oswego atop the league with two weeks left.
Lincoln-Way East scored 28 unanswered points to break open the game and post a 42-14 SouthWest Suburban Blue victory over Joliet West Friday in Frankfort.
Rich East gained a 34-29 Southland victory over Rich Central Friday. The win gives Rich East its first 5-0 start since 1997 in its Southland opener.
Hasan Muhammad-Rogers finished with five touchdown throws in Richards’ 46-21 win over Oak Lawn.