The fantastic finish that followed will go down in Oklahoma State history.
Boggan set career highs with 37 points and 20 rebounds and hit the game-winning 3-pointer with 3.2 seconds left in the third overtime to lift the Cowboys (No. 12 ESPN/USA Today; No. 14 AP) to a 105-103 victory over Texas (No. 23 ESPN/USA Today; No. 21 AP) on Tuesday night.
"When it left my hand, I knew it was going to go in. It felt like it was going in," said Boggan, a senior forward who is 6-for-37 from 3-point range this season. "Not to be just saying that, it actually felt good coming off my hand."
Durant, the Big 12's leading scorer and rebounder, put Texas on top with a three-point play with 10.5 seconds left, but there was still time for Boggan.
He took the ensuing inbounds pass near midcourt and fought through defenders to launch a 3 from the left wing. He fell to the floor and was joined by celebrating teammates after Texas' A.J. Abrams was called for traveling with 0.2 seconds left to clinch the win for the Cowboys.
"Mario's performance was, I thought, the best I've ever seen," Oklahoma State coach Sean Sutton said.
JamesOn Curry added 28 points and nine rebounds, Terrel Harris scored 16 points and Byron Eaton had 11 for Oklahoma State (16-2, 2-1 Big 12), which also won a double-overtime game against Pittsburgh earlier this season. Before Tuesday's win, Oklahoma State had lost its last seven games when a buzzer-beater was involved.
"This is our year, man," Boggan said. "Last year, it was the other way. This year, it's this way. But we work hard for it."
Durant, a freshman, tied his career best with 37 points and had 12 rebounds for the Longhorns (13-4, 3-1). D.J. Augustin added 19 points, Justin Mason had 18, Abrams 13 and Damion James had 10 points and 11 rebounds.
Oklahoma State scored the first five points of the third overtime but Texas tied the game at 100 on Connor Atchley's 3-pointer from the left corner.
Curry followed with two free throws to make it 102-100 and the teams both had empty possessions before Texas got the ball with 18 seconds to play.
Abrams drove the lane, and Durant was able to grab his missed runner and put it back while getting fouled by David Monds. He stepped to the line and drilled his free throw to give Texas the short-lived lead.
Fans rushed the court after the game finally ended -- a rare sight at Gallagher-Iba Arena, where the Cowboys rarely lose.
"I don't know if I'll ever be involved in another one like that," Texas coach Rick Barnes said. "We got down and kept digging ourselves a hole, but we worked our way back in it and they had the ball at the last and they made the last play.
"I guess it's kind of what you thought the game was going to end like."
What was the difference?
"It's toughness, man. It's all about loving the game," Boggan said. "That's all it is, wanting your team to win, being competitive."
"In this building, I always believe that we can do anything," Sutton said.
Even Sutton was ailing. He slipped and fell on the ice a night earlier, and had to be held up by assistants during a timeout late in regulation.
"Towards the end, it felt like there was a knife stuck in my back. I don't think I was going to pass out," Sutton said. "The pain was pretty bad, but I'm doing better now."
Texas kept staying alive largely because of Durant.
He helped lead the Longhorns back from a five-point deficit in the final minute of regulation, scored seven points in the first overtime and made two crucial defensive plays and a fast-break dunk to force the third extra period.
"Every time we scored, Durant would come back and make a play," Boggan said.
Sutton called Durant's performance the best he'd ever seen by an opposing player at Gallagher-Iba.
"He's an unreal talent," Sutton said.
Texas hadn't played a double-overtime game since 1995, and hadn't played three extra periods since it lost 95-94 to TCU in four overtimes on Jan. 7, 1961, in the longest game in Southwest Conference history.
Oklahoma State hadn't played more than two overtimes since winning 96-91 at Colorado on Feb. 5, 1983.
This time, it all came down to Boggan.
"On a shot like that, who knows what way it would have went? If I wouldn't have knocked the shot down, they would have won," Boggan said. "It still would have been a hard-fought game both ways, but luckily it went our way tonight and I feel much better."