MADISON, Wis. — Ohio State is one and done as No. 1, after Wisconsin bullied the Buckeyes all over the field then celebrated by jumping around on it with a few thousand friends.
John Clay ran for 104 yards and two touchdowns and James White darted in for the clinching score in the fourth quarter as No. 18 Wisconsin took down top-ranked Ohio State 31-18 Saturday night.
For the second week in a row, there will be a new No. 1, with the Buckeyes (6-1, 2-1 Big Ten) falling the way Alabama did the previous week — on the road and in conference.
Wisconsin hadn't defeated a No. 1 since 1981, when the Badgers knocked off Michigan 21-14.
"I know this isn't a bowl game or the national championship game, but I just started crying, man; to just be in a situation like that where nobody expects you to win," safety Aaron Henry said. "Nobody really expected us to go out there and win. It's an unbelievable feeling. I wish this night could last forever."
This one felt like an upset right from the start.
David Gilreath returned the opening kickoff 97 yards for a touchdown and the Badgers (6-1, 2-1) proceeded to run over the Buckeyes in the first half, taking a 21-3 lead into the break behind Clay and his blockers.
"I challenged our offensive line at the beginning of the week," Wisconsin coach Bret Bielema said. "If we're going to have success, it starts with you guys."
Terrelle Pryor, who threw for 156 yards and ran for 56, guided Ohio State on two long scoring drives in the second half and Dan Herron capped them both with touchdowns to cut the Wisconsin lead to 21-18 with 11:38 left.
But the Badgers responded with a long touchdown march, then added a field goal.
Now No. 1 is up for grabs again — just in time for the BCS standings to make their debut today.
"We just blew it as a team," Pryor said. His Heisman Trophy hopes might have taken a beating too, after he went 14-of-28.
Next up atop the AP Top 25? Maybe, No. 2 Oregon, which was idle this week and has never been No. 1.
And not only did OSU lose, so did previously unbeaten No. 5 Nebraska. So two power conference outsiders — No. 3 Boise State and No. 4 TCU — likely have two fewer bluebloods to block their possible path to the national championship game.
"We didn't talk anything about what remains and what's still out there," Ohio State coach Jim Tressel said. "Again, that's way further down the road than we typically talk about."
Wisconsin broke a three game-losing streak to the Buckeyes in easily the biggest victory since Bielema took over the program from Barry Alavrez five years ago.
Bielema had been 0-4 against top 10 teams. Now the Rose Bowl is in reach again for the Badgers.
Usually "Jump Around" time at Wisconsin is between the third and fourth quarters, when the House of Pain tune blares and the stadium shakes.
After beating the Buckeyes, the Badgers gathered at the 50 and bounced, and the fans joined in — pouring onto the field despite pleas from the PA announcer. They all seemed to make it down okay, covering the field and some sitting on the goal posts.
"At first it wasn't (scary), but then like five minutes later the whole field was covered and I got trapped, along with some other players, but it was a cool experience," White said. "The fans were out there all four quarters, so they deserved to get a chance to celebrate just like us."
For Ohio State, its national title hopes are dented after a third straight loss as the No. 1 team in the country. The last two came in the 2007 season, to Illinois in the regular season and in the BCS title game to LSU.