When the final gun sounded Saturday afternoon to make Kansas University’s upset victory over Missouri official, the goal posts came down.

Then the party was on at Potter Lake.

And Michael Mintos was having the time of his life.

Mintos was among thousands of KU students and fans who stormed the field, pulled down the goal posts and carried them up Mount Oread for a dunking in the lake.

“It was just awesome to beat Missouri and then bring down the posts,” the elated sophomore from Granville, Ohio, said afterward. “This is the first time I’ve done it.”

A sellout crowd of 50,071 people jammed into Memorial Stadium for the annual “border war” football game that saw KU rack up 35 points to Missouri’s 14. It was the largest crowd ever to see a KU-MU game in Lawrence and the first KU sellout since Nebraska came to town in 2001.

Still seething over scenes from last year’s Tiger victory in Columbia, Mo., where Mizzou players helped fans pull down their goal posts, Jayhawk fans took matters into their own hands after Saturday’s KU win.

Tearing down and dumping the goal posts in Potter Lake, however, was just the start of the celebration. Dozens of students jumped into the water with the goal posts. And, much to the amusement of a cheering crowd, a naked man ran from the stadium up the hill.

Among those going for a quick swim were Lawrence juniors Staci Dobbins and Havah Jazaieri.

Happy Kansas University students and fans head for Potter Lake with part of the goal post they tore down in Memorial Stadium after KU defeated Missouri 35-14. The posts came down Saturday for the first time since Oct. 23, 1999 -- the last time KU beat Missouri at home, a 21-0 shutout.

“The water was great, but it was cold,” Jazaieri said after she climbed out.

Dobbins agreed, but said she was willing to put up with cold after helping to carry the goal posts.

“We’ve been wanting to do something like this,” she said.

Chris Morton, an Overland Park junior, was the last to come out of the water. A KU Public Safety officer standing nearby strongly urged him to do so.

“I was in high school — I think — the last time KU beat Missouri, and I wasn’t about to pass up this chance,” Morton said of his celebratory jump in the lake.

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Several hundred people who couldn’t get into the stadium watched the game from Campanile hill above the south end zone. Among them was Michael Bales, a freshman from Topeka.

“I thought the crowd would be a factor and we’d win, but not by this many points,” said Bales, who was with his friends, Chris Strait, also a freshman from Topeka, and Sarah Dees, a freshman from Sioux City, Iowa.

“I think the crowd built their confidence,” Dees said.

Strait said he enjoyed watching the game from the hill.

“What’s better than a little nature and a football game?” he said.

Some Missouri fans began leaving the stadium after quarterback Bill Whittemore ran for a touchdown in the third quarter. Two fans who weren’t ready to throw in the towel, however, were Greg Nade, a Kansas City, Mo., sophomore at MU, and his friend, former MU student Marvin Gines, also of Kansas City. They expected MU quarterback Brad Smith to bring them back, they said.

Kansas quarterback Bill Whittemore is surrounded by fans as Fox Sports Net attempts to interview him after Kansas' victory over Missouri 35-14. The hand with the No.

“He’s like John Elway — the ‘comeback kid,'” Nade said of Smith, referring to the former NFL quarterback.

But when KU’s John Randle added another touchdown with 3:21 remaining in the fourth quarter, Missouri fans left the stadium in droves and quietly streamed up the hill while KU fans clapped and waved goodbye to them.