Updated: January 27, 2015, 9:51 AM ET

ESPN.com Power Rankings: Jan. 27

Yes, the top of the board looks the same. But don't get used to it. Things are about to change.

Some big showdowns loom this week, most notably Saturday's ACC tilt between Duke and Virginia. So things could shift and sway at the top.

And the middle and bottom of our Power Rankings ... well those have been in flux all season. And this week was no different. You can thank the Big 12 for that.

Voters: Eamonn Brennan (ESPN.com), C.L. Brown (ESPN), Sean Farnham (ESPN), John Gasaway (ESPN Insider), Jeff Goodman (ESPN Insider), Seth Greenberg (ESPN analyst), Andy Katz (ESPN.com), Joe Lunardi (ESPN), Myron Medcalf (ESPN.com), Dana O'Neil (ESPN.com).

1 Kentucky19-0
The Wildcats are still rolling along, making life miserable for opposing offenses. They lead the nation in blocks and are second in points allowed.
2 Virginia19-0
The Cavaliers are the other unbeaten, though barely. UVa survived a close call with Virginia Tech. Now the hard part: Duke, North Carolina and Louisville in a seven-day stretch.
3 Gonzaga20-1
Saint Mary's was supposed to be a test; it wasn't. The Zags pounded the Gaels, winning by 21 to hand Saint Mary's its first WCC loss.
4 Wisconsin18-2
The Badgers needed OT to fend off Michigan on the road. A difficult back-to-back against Iowa and suddenly hot Indiana is up next.
5 Duke17-2
With Mike Krzyzewski's 1,000th career win behind them, the Blue Devils can get back to business as usual. And that means a much-anticipated showdown with Virginia on Saturday.
5 Arizona18-2
Arizona has pushed aside its biggest Pac-12 contenders, beating Utah and Stanford in a five-day stretch. Could it be clear sailing for a while now?
7 Kansas16-3
The Jayhawks completed a four-game run against teams that were ranked at the time of the game, and emerged with a 3-1 record.
8 Villanova18-2
Balance is still Villanova's biggest asset. The Wildcats have seven players scoring at least 7 PPG, but none averaging more than 13.4 PPG.
9 Notre Dame19-2
Were the Irish looking ahead to Duke in their OT win over NC State? Well, Notre Dame will play Duke twice in the 11 days beginning with Wednesday's meeting.
10 Utah16-3
Delon Wright had just five points against Washington, his lowest scoring game of the season. No problem; the Utes still won by 21.
11 Louisville16-3
Duke exposed some of the Cardinals' weaknesses. But Louisville bounced back to beat Pittsburgh by shooting 65.2 percent from the floor.
12 North Carolina17-4
The weekly "Is Marcus Paige back" watch is a yes ... this week. He had 22 points, 8 assists and 6 rebounds in a win against Syracuse.
13 Iowa State15-4
A night at Hilton Coliseum makes everything better. After a bad road loss against Texas Tech, the Cyclones came home and drubbed Texas.
14 Wichita St18-2
The big matchup is coming Saturday, when the Shockers play Northern Iowa. But first, Wichita State has to take care of Loyola (Ill.).
15 Maryland18-3
Things in the Big Ten got a little harder. The Terrapins were drilled by 19 at Indiana, then needed a late shot from Dez Wells to beat Northwestern.
16 Virginia Commonwealth16-3
A last-second shot from Treveon Graham lifted the Rams over Saint Louis and increased VCU's winning streak to 11 games.
17 West Virginia16-3
Juwan Staten got back into double figures after being held to three points and four points in his previous two games. He scored 13 in an OT win over TCU.
18 Georgetown14-5
The Hoyas won a 95-85 overtime shootout with Marquette. Georgetown had six players in double figures, three of whom came off the bench.
19 Northern Iowa18-2
The Panthers have played a pair of close games, beating both Indiana State and Illinois State by single digits. Next up is Southern Illinois, then the showdown with Wichita State.
20 Baylor15-4
Life in the Big 12 isn't easy, but the Bears have won four of five, and that includes victories over two top-25 opponents.
21 Indiana15-5
The Hoosiers made noise by walloping Maryland, but the momentum slowed some with a loss against Ohio State.
22 Texas14-6
The Longhorns are hard to figure out. Two good games, against West Virginia and TCU, were followed by losses against Kansas and Iowa State.
22 Miami (FL)14-5
The Hurricanes keep finding themselves in close games. Four of their past five games have been decided by single digits.
24 Butler15-6
The Bulldogs hammered then-No. 24 Seton Hall by 20, completing the season sweep of the Pirates.
25 Oklahoma12-7
Playing in the rough-and-tumble Big 12 means something. The Sooners have lost four of five, but still grab the last spot in our rankings.

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