Stephen Curry couldn't stop jumping up and down at midcourt at the final buzzer.

Little Davidson was on its way to the NCAA college basketball tournament's round of 16 after another brilliant performance by its big-time guard in Raleigh, N.C.

Stephen Curry (30) and his Davidson teammates ruined the NCAA tournament for the heavily favoured Georgetown Hoyas on Sunday afternoon.
(Chuck Burton/Associated Press)

Curry, son of former Toronto Raptor Del Curry, scored 25 of his 30 points in the second half as Davidson staged a remarkable comeback behind their star sophomore to stun mighty Georgetown 74-70 on Sunday in the second round of U.S. college ball's Midwest Regional.

Curry missed 10 of his first 12 shots but stepped up at crunch time for Davidson, which trailed by 16 points with 15 minutes left.

He had the go-ahead basket, a key 3-pointer, and then hit five of six free throws in the final 23 seconds in a performance that left the Hoyas, and everyone else, stunned.

Davidson will now face Wisconsin in one of the Midwest semifinals while Kansas plays Villanova in the other, Thursday and Friday in Detroit.

The East regional semis find Louisville against Tennessee and Washington State against top-seed North Carolina in Charlotte.

At Houston, Memphis will face Michigan State and Stanford plays Texas for the South region semifinals. Finally, at Phoenix the West semifinal sees Xavier face West Virginia and Western Kentucky against UCLA.

In other Sunday games:

Villanova 84, Siena 72

Scottie Reynolds scored 25 points, Corey Stokes added 20 and Villanova gave Upset City its first sense of normalcy with an 84-72 victory over Siena in the second round of the NCAA tournament in Tampa, Fla.

Reynolds added eight rebounds and five assists as the 12th-seeded Wildcats (22-12) advanced to the Sweet 16 for the third time in four years.

Villanova will play the Midwest Region's top seed, Kansas, in Detroit.

Texas 75, Miami 72

With a 17-point lead unbelievably cut to three, A.J. Abrams calmly sank two with 9.5 seconds remaining, giving the second-seeded Longhorns just enough margin to hold off seventh-seeded Miami 75-72 in the second round of the South Regional at North Little Rock, Ark.

Abrams gave Texas a 74-69 lead, but the Longhorns weren't quite safe yet. Miami's Raymond Hicks made a three-pointer, and D.J. Augustin then shot an air ball on his first of two free throws with 1.8 seconds to play.

Augustin made the second, however, and Texas was able to break up a long pass to preserve the win.

Western Kentucky 72, San Diego 63

Western Kentucky didn't need a buzzer-beater this time.

Behind Courtney Lee's dazzling first-half performance and some clutch shooting down the stretch, the 12th-seeded Hilltoppers advanced to the round of 16 for the first time in 15 years with a 72-63 victory over No. 13 San Diego.

Lee finished with 29 points, including a huge three-pointer that gave his team the lead for good with 6:17 remaining. Six straight free throws in the final 34 seconds sealed the victory.

Brazelton added 15 points for the Hilltoppers. Rogers, who hit the 26-footer at the buzzer in overtime to beat Drake in the first round, had a much quieter afternoon. He had five points, three rebounds and two assists.

Tennessee 76, Butler 71 (OT)

JaJuan Smith hit four straight free throws in the final 13.6 seconds of overtime and the Volunteers held on for a 76-71 win over Butler, barely surviving a game they at times threatened to turn into an East Regional rout.

The Volunteers (31-4) scored six straight points inside after the Bulldogs took their first lead in the final two minutes of OT, including benched guard Ramar Smith's basket with 27 seconds left to make it 72-68.

Wayne Chism led foul-plagued Tennessee with 16 points, while Tyler Smith added 15 and Smith had 11.

Louisville 78, Oklahoma 48

Earl Clark scored 14 points and Louisville played to near-perfection on both ends, romping past Oklahoma 78-48 in the second round of the East Regional.

Louisville harassed freshman star Blake Griffin with double teams down low, trapped the Sooners and ran every chance it got. The Cardinals neatly zipped passes in the paint, and that bit of insider trading paid off with easy baskets all game.

Starting five players born outside Kentucky, the third-seeded Cardinals (26-8) reached the round of 16 for the first time since 2005.

North Carolina 108, Arkansas 77

North Carolina put on a show for its home-state fans in its first two NCAA tournament games. Now the overall No. 1 seed is off and running to the round of 16, where another comfortable setting awaits.

Wayne Ellington scored 20 points and the Tar Heels raced to a double-digit lead in the first five minutes of a 108-77 second-round win over Arkansas.

Memphis 77, Mississippi State 74

Joey Dorsey had 13 points, 12 rebounds, a season-high six blocks and an untold number of bumps and bruises, helping Memphis win its ninth straight and advance to the round of 16 for the third straight year.

Derrick Rose and Chris Douglas-Roberts added 17 points each for the Tigers (35-1), who will play fifth-seeded Michigan State (27-8) in the regional semifinals on Friday.

Jamont Gordon had 21 points and Ben Hansbrough 19 for eighth-seeded Mississippi State (23-11), which hasn't made it out of the first weekend since the 1996 team went to the Final Four.