Nevada-Las Vegas made a clean sweep of both the United Press International and Associated Press college basketball ratings again Monday, remaining the unanimous No. 1 pick.

The Runnin' Rebels, who own the nation's longest winning streak at a school-record 25 games after downing UCSB Monday night, earned all 40 first-place votes cast by the 42-member Board of Coaches to finish with 600 points in the UPI poll and all 60 first-place votes cast by the media to finish with 1,600 points in the AP poll.The top five are identical in both polls - Arkansas is No. 2, Indiana No. 3, Ohio State No. 4 and Arizona No. 5. Ohio State will likely move up next week since the Buckeyes defeated Indiana Monday night.

And the Cinderella University of Utah 'Runnin Utes continue to climb in both polls. Last week Coach Rick Majerus' club was 22 in UPI and 23 in AP. But an impressive road victory over Wyoming Thursday followed by a victory Saturday against a stubborn Air Force Academy team has vaulted the 17-1 Utes to 17th in the UPI poll and to No. 20 in AP.

The Utes are now the only WAC team ranked. Wyoming had been No. 25 before its loss to Utah.

The Utes can match the school record of 16 straight victories if they defeat Colorado State Thursday and Air Force Saturday in games at the Huntsman Center.

UNLV, trying to become the first school to win back-to-back national titles since UCLA's seven in a row from 1967 to 1973, improved its record to 13-0 last week with routs of 117-76 over Cal-Irvine and 114-63 over Long Beach State.

Nevada-Las Vegas is averaging 103.9 points a game on offense and allowing opponents an average of 71.8. The last time the Runnin' Rebels were not the unanimous No. 1 pick in UPI was Dec. 10, when UNLV received 41 first-place votes and Georgetown got the other one.

Before this year, the last unanimous No. 1 choice in UPI was Arizona in the next-to-last week of the 1988-89 season. North Carolina was the last team to be a unanimous No. 1 in consecutive ratings, sweeping the vote for three straight weeks in 1985-86.

In UPI, Indiana, which was leapfrogged by Ohio State a week ago, jumped back over the Buckeyes after victories over Purdue and Iowa. The Hoosiers collected 500 points in this week's voting, while Ohio State earned 490.

The Buckeyes, the only other undefeated team in the nation at 15-0, defeated Illinois 89-55 in their only game last week.

Kentucky, 14-2, is one of seven schools ineligible for the NCAA Tournament and the UPI ratings. The Wildcats, however, are eligible for the AP ratings and are ranked eighth.

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(Additional information)

UPI Top 25

NEW YORK (UPI)

The United Press International Board of Coaches' Top 25 college basketball ratings, with first-place votes and records through Jan. 20 in parentheses, total points (based on 15 points for first place, 14 for second, etc.) and previous week's ranking:

1. UNLV (13-0) 600 1

2. Arkansas (17-1) 548 2

3. Indiana (16-1) 500 4

4. Ohio State (15-0) 490 3

5. Arizona (15-2) 437 6

6. Duke (14-3) 341 9

7. Syracuse (16-2) 319 8

8. North Carolina (14-2) 305 5

9. St. John's (13-2) 254 10

10. UCLA (14-3) 194 7

11. Oklahoma (14-3) 140 11

12. Nebraska (16-1) 135 13

13. East Tennessee St. (14-1) 134 16

14. Louisiana State (12-3) 81 17

15. S. Mississippi (10-1) 80 20

16. Pittsburgh (14-4) 37 14

17. Utah (17-1) 36 22

18. Michigan State (12-4) 33 NR

19. Connecticut (12-4) 31 12

20. Georgetown (11-4) 29 18

21. Virginia (11-4) 17 15

22. New Mexico State (12-2) 12 19

23. New Orleans (15-2) 11 24

24. Kansas (11-4) 9 NR

25. Georgia Tech (10-5) 7 NR

NR - not ranked

AP Top 25

The Top Twenty Five teams in the Associated Press 1990-91 college basketball poll, with first-place votes in parentheses, records through Jan. 20 total points based on 25 points for a first place vote through one point for a 25th place vote and last week's rankings:

Record Pts Pvs

1. UNLV 13-0 1,600 1

2. Arkansas 17-1 1,518 2

3. Indiana 16-1 1,448 3

4. Ohio St. 15-0 1,434 4

5. Arizona 15-2 1,325 6

6. Syracuse 16-2 1,156 8

7. North Carolina 13-2 1,115 5

8. Kentucky 14-2 1,108 9

9. Duke 15-3 1,090 12

10. St. John's 13-2 1,063 10

11. UCLA 14-3 881 7

12. E. Tennessee St. 14-1 799 15

13. Oklahoma 14-3 782 11

14. Nebraska 16-1 773 17

15. Southern Miss. 10-1 712 18

16. LSU 12-3 687 20

17. Pittsburgh 14-4 502 16

18. Virginia 11-4 457 14

19. Connecticut 12-4 453 13

20. Utah 17-1 450 23

21. Georgetown 11-4 374 19

22. Michigan St. 12-4 252 -

23. New Mexico St. 12-2 211 21

24. New Orleans 15-2 118 -

25. South Carolina 13-4 106 22