Like the playoff picture, another week of results brought significant change to the Heisman Trophy race.

Penn State running back Saquon Barkley still leads the USA TODAY Network Heisman survey. He was named first by 12 of the 21 official Heisman voters who work for Gannett properties. But his lead narrowed a bit after he was held to 75 rushing yards by Northwestern, opening the door for some other contenders to emerge.

Stanford running back Bryce Love moved into second place in this week’s survey, overtaking Oklahoma QB Baker Mayfield. Love ran for 152 yards, including a pivotal 68-yard scoring dash, in the Cardinal’s win at Utah to bring his season total to 1,240 rushing yards through six games. Mayfield passed for 306 yards and two TDs, but his Sooners were upset by Iowa State.

In addition to the top three, two other quarterbacks of unbeaten teams, Washington State’s Luke Falk and Navy’s Zach Abey, received first-place votes after only Barkley and Mayfield received firsts last week.

The Iowa State defeat of Oklahoma also earned a couple of mentions for Cyclones linebacker and occasional quarterback Joel Lanning. Eight players in all received votes in the survey.