With three players fouled out and Britton Johnsen only available for cheerleading, Utah coach Rick Majerus was making up new plays on the fly.
"We were playing with every possible combination," Majerus said. "We were drawing things up. We didn't have plays. We don't have plays when you have two point guards, two 2s [shooting guards] and a 3 [small forward] out there. But we did a great job playing through adversity."
Nick Jacobson scored 23 points and hit two of three free throws with 14.4 seconds left as the ninth-seeded Utes overcame their worst shooting performance of the season to beat Oregon, 60-58, in Nashville.
The eighth-seeded Ducks had a chance to win, but James Davis missed two three-pointers in the final seconds.
"It's always devastating to lose a close game like that. It's not one person's fault. But there wasn't a doubt in my mind they were going to fall. That is how the game is," Davis said.
Johnsen is sidelined by an enlarged spleen from mononucleosis. Playing without its second-leading scorer, Utah (25-7) won for the ninth time in 10 first-round games under Majerus.
But this one wasn't pretty.
"I like the tag of winning," Jacobson said. "I don't care how it goes."
It was a disappointing loss for Pac-10 tournament champion Oregon (23-10), a team ranked as high as fifth in the nation in December. Luke Ridnour, the Pac-10 player of the year, had one of his worst games of the season, including fouling Jacobson on a three-pointer as the clock ticked down.
The Utes won despite missing their first nine shots and hitting just 29.5 percent from the floor. Utah's only first-round loss under Majerus came last year to eventual runner-up Indiana.
The Utes will play top-seeded Kentucky in the second round today.
* INDIANA 67, ALABAMA 62: Bracey Wright scored all 17 of his points after halftime, and Tom Coverdale had 23 points, eight assists and the game's final rebound to lead the Hoosiers in Boston.
Alabama, which was the No. 1-ranked team in the country on New Year's Day before falling apart in the second half of the season, had a similar collapse against the Hoosiers.
The 10th-seeded Crimson Tide (17-12) led by 11 at the half but trailed the No. 7 seed by six until Williams hit a long three-pointer at the 1:00 mark to make it 65-62. Wright missed at the other end, but when Williams had a chance to tie it in the final seconds his three-point attempt was off the mark.
Indiana advances to face second-seeded Pittsburgh in today's second round.
* KENTUCKY 95, IUPUI 64: The Wildcats got good looks at the basket all day against a team with an eye chart for a name.
Top-seeded Kentucky extended its winning streak to 24 by routing tourney newcomer IUPUI, 95-64, in Nashville.
Kentucky (30-3) hasn't lost since Dec. 28, and the Wildcats weren't about to slip against the Jaguars. They shot a staggering 62 percent, hitting 40 of 65 attempts from the field. Gerald Fitch, who has overcome several run-ins with coach Tubby Smith, tied his career high with 25 points and set a new mark by going 5 of 7 from three-point range.
* PITTSBURGH 87, WAGNER 61: The Panthers played physical basketball in the first half before coasting past the Seahawks.
"They hit you every play, which is legal," Wagner Coach Dereck Whittenburg said. "They bump you. They chuck you. They do it consistently."
Wagner, a huge underdog as the 15th-seeded team, stayed close for most of the first half before second-seeded Pittsburgh finished it with a 7-2 run for a 40-29 lead. The Panthers started the second half with an 18-3 surge that all but finished the Seahawks with nearly 14 minutes still to play.