By The Associated Press

KANSAS CITY, Mo. - Wayne Simien had 18 points and 12 rebounds and Kansas overcame a slow start to beat Pacific.

Kansas (23-8), which has made two straight Final Fours, is in the round of 16 for the fourth consecutive year.

Guillaume Yango had 22 points for Pacific (25-8), which had won 16 straight games.

Georgia Tech 57, Boston College 54

MILWAUKEE - Jarrett Jack scored four points in the final minute, including a key steal and dunk with less than six seconds left to lift Georgia Tech.

The third-seeded Yellow Jackets advanced to the semifinals of the St. Louis Regional to face 10th-seeded Nevada on Friday at Edward Jones Dome.

Jack finished with eight points, six rebounds and six assists. B.J. Elder led the Yellow Jackets (25-9) with 18 points.

Jared Dudley had 13 points for Boston College (24-10).

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East Rutherford Regional: Oklahoma St. 70, Memphis 53

KANSAS CITY, Mo. - Joey Graham scored 21 points - all but one of those coming in the first half - for Oklahoma State.

The second-seeded Cowboys (29-3) will meet third-seeded Pittsburgh on Thursday at Continental Airlines Arena.

Oklahoma State led 41-19 after a first half in which it shot 68 percent (17-for-23) and outrebounded the Tigers (22-8) 17-6. Antonio Burks and led Memphis with 21 points.

Pittsburgh 59, Wisconsin 55

MILWAUKEE - Carl Krauser scored 16 points, and Julius Page added 12 to lead Pittsburgh (31-4).

Pittsburgh shot 36 percent to the Badgers' 35 percent, and it was anybody's game until the closing seconds when the Panthers made all the crucial plays.

Devin Harris scored 21 points for the Badgers (25-7), but none after his 3-pointer gave Wisconsin a 40-37 lead.

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Phoenix Regional: Vanderbilt 75, N. Carolina St. 73

ORLANDO, Fla. - Matt Freije scored 31 points, and Corey Smith's three-point play with 21.2 seconds remaining lifted sixth-seeded Vanderbilt past North Carolina State.

Vanderbilt (23-9) trailed by 11 with 4:20 left, but Freije scored 11 points from there to lead the comeback.

The Commodores will play second-seeded Connecticut on Thursday at America West Arena.

Ilian Evtimov had a career-high 28 points for third-seeded North Carolina State (21-10).

Sweet 16 matchups

EAST RUTHERFORD REGIONAL

Thursday's semifinals

• Oklahoma State (29-3) vs. Pittsburgh (31-4), 7:27 p.m., followed by:

• Saint Joseph's (29-1) vs. Wake Forest (21-9)

PHOENIX REGIONAL

Thursday's semifinals

• Vanderbilt (23-9) vs. Connecticut (29-6), 7:10 p.m., followed by:

• Alabama (19-12) vs. Syracuse (23-7)

ATLANTA REGIONAL

Friday's semifinals

• Texas (25-7) vs. Xavier (25-10), 7:27 p.m., followed by:

• Duke (29-5) vs. Illinois (26-6)

ST. LOUIS REGIONAL

Friday's semifinals

• UAB (22-9) vs. Kansas (23-8), 7:10 p.m., followed by:

• Georgia Tech (25-9) vs. Nevada (25-8)