Makai Lemon made 10 catches for 153 yards and a second-half touchdown, and No. 17 Southern California scored 19 unanswered points to keep its College Football Playoff hopes alive with a 26-21 victory over Iowa.

Atticus Sappington kicked a 39-yard field goal with 3 seconds left, and No. 6 Oregon escaped with an 18-16 win over Iowa on a rainy Saturday.

Kyle Konrardy kicked a 54-yard field goal with 1:52 left to give No. 16 Iowa State a 16-13 win over Iowa for the Cyclones’ second straight victory against their in-state rival and third in four years.

Alan Bowman threw three touchdown passes, Ollie Gordon II scored three times and No. 17 Oklahoma State ended two-time defending FCS national champion South Dakota State’s 29-game winning streak with a 44-20 victory Saturday.

Mark Gronowski ran for a touchdown and threw for another after halftime as South Dakota State won its second Football Championship Subdivision title in a row, beating Montana 23-3.

Mark Gronowski threw for three touchdowns and ran 51 yards for another one as South Dakota State won its first national championship with a 45-21 win over North Dakota State.