Jon Scheyer scored 18 points to help No. 18 Duke win its 21st straight over Clemson, 71-66, last night -- without any late help with the game clock.

When these teams met last month at Cameron Indoor Stadium, the Blue Devils' 68-66 victory was helped when officials incorrectly added time at the end -- the extra seconds more than enough for David McClure's winning layup.

This time, Duke (21-7, 8-6 Atlantic Coast Conference) opened a 21-point halftime lead and hung on as Clemson (19-8, 5-8) came within 69-64 in the final minute.

Scheyer, though, hit two foul shots with 5.7 seconds left to put the game away.

DeMarcus Nelson had 16 points and Greg Paulus added 14 for the Blue Devils, who have won three straight since a four-game losing streak.

Cliff Hammonds and Vernon Hamilton had 14 points each for Clemson, which has lost eight of 10 games since starting the season 17-0.

The sellout crowd at Littlejohn Coliseum hadn't forgotten the clock problems of last time. Several students wore large clocks around their necks.

· OREGON 64, WASHINGTON ST. 59:In Eugene, Ore., freshman Tuajan Porter scored 21 points and Aaron Brooks made a layup with 12.9 seconds left to seal the No. 23 Ducks' victory over the ninth-ranked Cougars.

Oregon (21-7, 9-7 Pac-10) had lost three straight games and six of its last eight. The victory marked the third time the Ducks have defeated a top-10 team this season.

Washington State (22-5, 11-5) had won five straight since a 77-74 overtime loss to Oregon in Pullman. Daven Harmeling led the Cougars with 15 points.

· UCLA 85, CALIFORNIA 75:Josh Shipp scored 22 points and Lorenzo Mata added 14 to lead a second-half comeback in the Bruins' victory over the Golden Bears that extended fourth-ranked UCLA's home winning streak to 19 games.

UCLA (24-3, 13-2 Pac-10) completed a season sweep of Cal (14-13, 6-9), which had won its two previous games at Pauley Pavilion and dominated the first half.

· MEMPHIS 99, RICE 63:Willie Kemp scored 20 points to help the No. 7 Tigers clinch their second straight Conference USA title.

The victory extended Memphis's winning streak to 16 straight, longest in the nation. The Tigers (24-3, 13-0) also have won 28 straight at home.

Rice's Morris Almond, the nation's third-leading scorer at 27.2 points a game, was held to just 15. The Owls are 13-13, 7-6.

· LOYOLA-CHICAGO 75, BUTLER 71:Blake Schilb scored 28 points, Tracy Robinson hit five free throws in the final 36 seconds and the visiting Ramblers held off the No. 15 Bulldogs for their first victory over a ranked opponent in 21 years.

It also gave streaking Loyola (20-9, 10-5 Horizon League) its seventh straight win, its longest streak since 1992, and assured league leader Wright State the top seed in the conference tournament next week.

A.J. Graves led Butler (24-5, 12-3) with 24 points.

· NEVADA 84, IDAHO 68:Nick Fazekas scored 21 points and grabbed 14 rebounds to help the No. 11 Wolf Pack beat the host Vandals.

Nevada (25-2, 12-1 Western Athletic Conference) won its eighth game in a row and 18th of 19. The Wolf Pack has the best winning percentage in the nation.

Keoni Watson scored 27 points for Idaho (3-24, 1-13), which has lost 10 straight.