FARGO, N.D. — Eric Perkins returned a punt 88 yards for a touchdown to finish off a dominating first half, and four-time defending FCS winner North Dakota State rolled to a 33-7 victory over Richmond in a semifinal game Saturday night.

The Bison (12-2) advanced to the Jan. 9 championship game in Frisco, Texas, against the winner of the semifinal Saturday between Sam Houston State and Jacksonville State.

King Frazier rushed for 121 yards and two touchdowns and redshirt freshman quarterback Easton Stick threw for a pair of scores to lead the Bison.

North Dakota State led 26-0 at halftime, and it should have been more. Not including Perkins’ punt return with 1:31 left in the half, the Bison drove into Spiders territory on all seven of their drives in the first half. Three of them ended in touchdowns, two of them stalled for missed field goals and the last one ended on downs on the final play of the half.

North Dakota State built a 155-26 advantage in total yardage in the first quarter and a 247-67 margin by halftime. Richmond (10-4) crossed into North Dakota State’s side of the field just once in the first half, a drive that ended with a punt at the Bison 47.

MOUNT UNION 49, ST. THOMAS 35: Taurice Scott threw three touchdown passes and ran for another score, and Mount Union won its NCAA-best 12th football title, beating St. Thomas of Minnesota 49-35 in the Division III championship game in Salem, Virginia.

Logan Nemeth ran for 220 yards and two touchdowns for the Purple Raiders (15-0), who were appearing in the Amos Alonzo Stagg Bowl for the 11th consecutive season.

Jordan Roberts scored two touchdowns for St. Thomas (14-1).

CLEMSON: Injured wide receiver Mike Williams said he’ll return to the Tigers next season.

Williams was a 1,000-yard receiver as a sophomore and figured to be a key part of top-ranked Clemson’s offense this season. But he injured his neck in the season opener against Wofford and hasn’t played since.

WOMEN’S BASKETBALL

(10) OHIO STATE 90, PRINCETON 70: Ameryst Alston scored 27 points and Kelsey Mitchell added 25 to help the Buckeyes (7-3) snap a seven-game winning streak for visiting Princeton (9-2).

(24) MICHIGAN STATE 77, NORTHEASTERN 51: Akyah Taylor scored 17 points and Aerial Powers had 16 points and 12 rebounds to lead the Spartans at Boston

The Spartans improved to 8-2 while the Huskies fell to 5-4.

The game was part of the Winter Showdown, with the men’s teams playing Saturday and the hockey teams squaring off Saturday night.