Still, Iowa State had a chance to get back into it after trailing 21-0 at halftime.
Alexander Robinson ran 67 yards for a touchdown on the second play of the third quarter to finally give the Cyclones some life. But they had to punt on their next two possessions, Grant Mahoney missed a 40-yard field goal attempt and their final hopes ended when Devin McDowell fumbled the ball away returning a punt.
Nebraska capitalized with Ganz’s 1-yard sneak for a touchdown to put it out of reach.
“This offense is always anxious because we’ve had our times this year when we’ve moved the ball,” Iowa State quarterback Austen Arnaud said. “But as an offense and as a whole team we’ve got to find that even keel, that medium zone when we can ride out the bad times and play through it, fight through it.”
Ganz was almost flawless in the first half when it looked as if he and his receivers were playing catch in the backyard, going 21-of-26 for 283 yards. He passed Vince Ferragamo, Turner Gill and Tommie Frazier to move into fifth place on Nebraska’s career passing list with 3,524 yards.
In the last two games, quarterbacks have completed 79 percent of their passes against Iowa State -- 48-of-61.
“They were giving up so things in the passing game,” Ganz said. “We caught them off guard and they tried to blitz to answer it, but we had a great kill package to answer the blitz.”
Nebraska scored on first-half drives of 92, 85 and 71 yards while Iowa State struggled to run any kind of successful play at all. The Cornhuskers led 21-0 before Iowa State got its second first down, which came with 2:09 left in the half.
Ganz was 14-of-15 for 193 yards on the three drives, including a 19-yarder to Swift for the first touchdown. Swift caught the ball at the 5, bounced away when defensive back Leonard Johnson tried to push him and dove into the end zone.