SEATTLE (AP) -- With the game on the line in the final minutes, Oregon didn't crack under the pressure.
With Cathrine Kraayeveld scoring 23 points and Brandi Davis hitting two critical 3-point baskets, the 10th-seeded Ducks upset the seventh-seeded Lady Frogs 58-55 on Saturday in the first round of the NCAA Tournament.
Kraayeveld made two free throws to put Oregon ahead 57-53 with 16.9 seconds left before Vanessa Clementino responded with a layup for TCU with 11 seconds go to.
Davis made a free throw with 10.1 seconds left, and TCU's Ashley Davis missed a 3-point attempt as the buzzer sounded. The Ducks move on to play second-seeded Baylor in the next round of the Tempe Regional.
TCU's Niki Newton and Clementino were in tears at the end of the game. Sandora Irvin, the Lady Frogs' premier shotblocking senior, hugged Newton on the floor to soothe her emotions.
The 6-foot-3 Irvin led the Lady Frogs with 14 points, seven rebounds and six blocked shots, while Natasha Lacy and Clementino each had 10 points. Irvin finished six points below her average and fouled out with 1:29 left.
It was an emotional and thrilling final 10 minutes.
With the crowd chanting "Let's go Ducks, let's go Ducks" at Pac-10 rival Washington's arena, the Ducks overcame an eight-point deficit in the final 9:49.
Trailing 46-38, Oregon cut it to 46-45 on a 15-footer by Gabrielle Richards, a 3-pointer by Kraayeveld and two free throws by Richards. Two free throws by Clementino put the Lady Frogs ahead 48-45 with 5:50 left before Davis sank a 3-pointer.
Kraayeveld, a 6-foot-4 senior from nearby Kirkland, made two free throws, but Irvin of TCU tied the score for the final time at 4:26 with a pair of free throws.
Andrea Bills bulled her way in for a layup with 3:36 left and Davis hit her second 3-pointer for Oregon before Lacy's 3-pointer for TCU with 32 seconds cut the Ducks' lead with 55-53 with 32 seconds left.
Bills had 10 points and eight rebounds, while Oregon point guard Corrie Mizusawa had eight assists, one more than the TCU team had.
Irvin finished with 150 blocks this season, two shy of the NCAA single-season record. She finished with 480 blocks, the NCAA career record.
Oregon (21-9) won on a floor where it lost to Washington 81-57 during the Pac-10 season. The Ducks finished in a tie for second in the Pac-10 race.
The Conference USA tournament champion and No. 23 Lady Frogs (23-10) had won six of their final seven games. Their season ended in disappointment after flying 2,100 miles to Seattle.
The Ducks won their first tournament game since 1999, while TCU lost a first-round tournament game for the first time in the school's history, having won four in a row.