DURHAM, N.C. - Mike Krzyzewski knows what it takes to win, and he just didn't see that effort from Duke against Maryland.

"That's not to say we didn't want it, but this team has had to work extremely hard to get where we are at this moment," the Blue Devils coach said. "When you haven't lost, you kind of take a deep breath and when you're taking a deep breath, someone else is going after you."

Well, he won't have to worry about that anymore.

Nik Caner-Medley had 25 points before leaving with an ankle injury, and his Maryland teammates finished off the second-ranked Blue Devils at the free-throw line in a 75-66 victory Wednesday night.

The Terrapins (12-5, 3-3 Atlantic Coast Conference) lost three of their previous five games, all by at least 15 points. But they hung with Duke (15-1, 5-1) throughout and allowed only two points in the final 3½ minutes.

"I just thought they played a little bit harder than we did," Krzyzewski said. "We didn't have the attitude that we've had the entire year. This team has to have an edge all the time."

Top-ranked Illinois and No. 8 Boston College are the only teams left without a loss. Boston College rallied to beat Providence 78-65 on Wednesday night.

"I think that you have to win a game against a quality team during the year to have credibility and believing that you're a good team," Gary Williams said. "I'm not saying that because we won, I just think that those guys have maxed out incredibly well.

"I'm sure they're very proud of what they've done."

At Providence, R.I., Jared Dudley hit a 3-pointer with 1:20 left to give Boston College (17-0, 6-0 Big East) the lead.Dudley finished with 21 points, 12 rebounds and six assists, and Craig Smith also scored 21 points. Donnie McGrath led Providence (9-9, 0-5) with 17 points.

At Louisville, Ky., Larry O'Bannon made six 3-pointers and scored 30 points, both career highs, to help Louisville (17-3, 5-1 Conference USA) hand Marquette its most-lopsided loss ever.Todd Townsend had 17 points for Marquette (14-5, 2-4). The 47-point margin topped the previous mark of 45 set in a 57-12 loss to Creighton in 1940.

At Auburn, Ala., Earnest Shelton scored 22 points and made five late 3-pointers to lead Alabama to its fourth straight victory over Auburn.The Crimson Tide (16-3, 5-1 Southeastern Conference) held off Auburn (9-9, 0-5) after the Tigers cut a 15-point deficit to one.

At Evanston, Ill., Michael Jenkins' 3-pointer at the overtime buzzer hit the rim, bounced high and fell through to give Northwestern (9-9, 2-4 Big Ten) a stunning victory. The Wildcats rallied from 12 down with 3:27 to go in regulation.Northwestern's Vedran Vukusic sent it to overtime when he hit three free throws after being fouled on a 3-pointer with 13.8 seconds left. He finished with a career-high 32 points, 13 in the final 2 minutes of regulation.Greg Brunner had a career-high 28 points for Iowa (14-5, 2-4).