COLUMBIA, S.C. -- Kentucky's return to No. 1 might not last very long.
Devan Downey scored 30 points and South Carolina sent No. 1 Kentucky to its first loss of the season with a 68-62 victory on Tuesday night.
The Wildcats (19-1, 4-1 Southeastern Conference) moved atop the rankings for this week for the first time since 2003. They were cautioned by no less a fan than President Barack Obama earlier Tuesday to keep their focus and play with the same passion that brought them to the top.
The president or Kentucky didn't count on Downey, the SEC's leading scorer to break the 30-point mark for the fourth time in six league games for South Carolina (12-8, 3-3).
The Gamecocks had lost all seven previous games they'd played against No. 1-ranked teams.
DeMarcus Cousins matched his career best of 27 points to lead Kentucky, which had been the nation's last unbeaten team.
No. 5 Michigan St. 57, Michigan 56
ANN ARBOR, Mich. -- Kalin Lucas made a go-ahead jumper with 3.5 seconds left, for No. 5 Michigan State.
DeShawn Sims had shot roll off the rim on an alley-oop pass with 0.9 seconds left for the Wolverines.
The Spartans (18-3, 8-0 Big Ten) have won their first eight conference games for the first time in school history and have beaten their rival for 17th time in 20 meetings.
Michigan (10-10, 3-5) has lost three straight games for the second time this season and have to end the season with a remarkable run to earn a second straight at-large bid to the NCAA tournament after starting the season ranked 15th.
Sims scored 19 and Manny Harris, who didn't start after serving a one-game suspension, had 16 points.
No. 9 West Virginia 62, DePaul 46
ROSEMONT, Ill. -- Da'Sean Butler and Wellington Smith scored 14 points apiece for No. 9 West Virginia.
Devin Ebanks also had 14 points for West Virginia (16-3, 5-2 Big East), which has won three straight after a 72-71 loss to Syracuse on Jan. 16
Leading 37-28 at the half, Smith made back-to-back 3s for West Virginia and Devin Ebanks had a putback to build the Mountaineers lead to 45-30.
Will Walker led DePaul (8-12, 1-7) with 17 points. DePaul trailed by double-digits for most of the second half.
After back-to-back non-conference wins against Marshall and rallying from a 12-point halftime deficit to beat Ohio State on Saturday, the Mountaineers returned to Big East play by starting the game by connecting on their first three 3-point attempts. Butler hit back-to-back 3s to start and Smith followed with another 3.
No. 11 Kansas St. 76, No. 24 Baylor 74
WACO, Texas -- Jacob Pullen made two free throws with 8.2 seconds left and scored 25 points for Kansas State.
Only three days after having their school-record 14-game home court winning streak snapped in a loss to Oklahoma State, the Wildcats (17-3, 4-2 Big 12) put an end to Baylor's 11-game winning streak that was also a school record.
Baylor (15-4, 2-3) still had one more chance after Pullen's two free throws. But LaceDarius Dunn, who struggled all night, lost the handle in the lane after driving the court and then recovered in time to throw up a wild one-handed shot that never had a chance.
Dunn finished 3 of 13 shooting with only nine points, following a five-game stretch when he had at least 20 points four times before scoring 15 in the last game. He had 33 points with nine 3-pointers in a victory over the Wildcats last year.
No. 25 UAB 65, Tulsa 55
BIRMINGHAM, Ala. -- Elijah Millsap had 19 points and 12 rebounds and helped pull No. 25 UAB out of a lengthy offensive funk.
The Blazers (18-2, 6-0 Conference USA) blew a 16-point halftime cushion but rebounded from a 12-minute span without a basket in time to survive a matchup of the only two remaining C-USA teams without a league loss.
Millsap broke that frigid spell with a basket and free throw with 6:16 left to halt a 19-2 run that had given the Golden Hurricane (16-4, 5-1) a 46-44 lead. Then he added a one-handed fastbreak dunk off a bounce pass from Aaron Johnson a minute later and was fouled then, too.
George Drake hit eight straight free throws in the final 5:39 and finished with 17 points. The Blazers made their first 16 attempts from the foul line after halftime to hold on when the jump shots stopped falling.