The Spartans emphatically punched their ticket for Indy in a Senior Day blowout. As Joe pointed out in the Five Factors recap, the total yardage was close but multiple defensive touchdowns and another short-field touchdown had a lot to do with that.
Iowa 28, Nebraska 20
This is another weird boxscore: Nebraska put up nearly 200 more yards (433-250) but was -3 in turnover margin (including a short pick-six) and twice settled for field goals after drives of 50+ yards. After Nebraska cut the lead to just 21-17 (wasting a good opportunity to go for two to cut the lead down to 3; in the endgame this might have been helpful as they would know whether a field goal is any use or not) midway through the third quarter, Jordan Canzeri took the first play from scrimmage 68 yards for a touchdown to pad the lead back out.