FARGO, N.D.--Karl Ivory returned an interception 73 yards for a touchdown late in the first half to lead No. 6-ranked Cal Poly to a 13-10 victory over North Dakota State University in a Great West Football Conference game played Saturday, Oct. 23, before a crowd of 11,834 at the Fargodome.

North Dakota State (5-3, 1-3 GWFC) is scheduled to host No. 9 Northwestern State, La. (5-2) at 1 p.m. Saturday, Oct. 30, in the Harvest Bowl.

Ivory's interception was one of three for the Mustangs. Interceptions by Aaron Williams and Kenny Chicoine ended any comeback ideas for the Bison in the fourth quarter. It was the fifth interception and the second returned for a TD by Ivory this season. Jordan Beck led Cal Poly with eight tackles including 2.5 tackles for a loss.

The loss spoiled an outstanding defensive effort by North Dakota State, sparked by senior cornerback Matt Gorman. Gorman had two interceptions, a pair of pass breakups and four tackles. NDSU limited Cal Poly to 159 yards of total offense including 64 rushing. Jayd Kittelson and Dwight Summerville each had a fumble recovery, while Brian Erenberg and Joe Mays recorded a quarterback sack.

The Bison had 271 yards of total offense. Tony Stauss completed 20-of-37 passes for 187 yards and three interceptions. Travis White led NDSU with eight catches for 96 yards. Kyle Steffes gained 67 yards on 10 attempts. 

Steffes' 20-yard TD run capped an 84-yard drive that put NDSU ahead 7-0 with 5:15 left in the first quarter. Anthony Garnett scored on an one-yard run, but Byungwoo Yoon's kick was wide right and the Bison held a 7-6 lead with 4:23 left in the second quarter.

The only scoring in the second half was a 19-yard field by NDSU walk-on freshman Kyle Wilcox.