UP TO CHALLENGE: Lindsay Tarpley's hat trick guided No. 1 North Carolina in a rout over Washington State, and Lori Chalupny scored both goals, the winner in overtime, to lift the Tar Heels past Washington to win the Pac-10/ACC Challenge in Seattle.

The unranked Huskies beat Maryland in overtime as Tina Frimpong scored twice.

GATORS START: Crystal Frimpong — Tina's twin — scored a goal and added an assist as Florida, also unranked, opened its campaign with a 2-1 win over No. 8 Penn State in Gainesville. Frimpong had another goal, and Dena Floyd a pair, as the Gators then knocked off No. 21 USC, 4-3.

Penn State and USC won their other games in Florida, both beating No. 13 Florida State by a goal.

SHOWDOWNS: No. 3 UCLA got an 88th-minute goal from Mexican national-teamer Iris Mora to pull even with No. 4 Santa Clara, 1-1. The Bruins then overcame No. 10 Pepperdine, 2-0, on goals by Caitlyn Ursini and Sarah-Gayle Swanson.

No. 9 Virginia topped No. 11 West Virginia, 1-0, on Gillian Hatch's 87th-minute free kick.

LOSING STREAK: Four of Soccer America's Top 10 teams lost in Week 1, including Penn State's and Pepperdine's losses. No. 5 Texas fell, 3-2, at Duke as Carolyn Riggs assisted Darby Kroyer near the end of the first half and scored one of her own in the first minute of the second half.

No. 7 Portland watched a two-goal lead slip away in the final 10 minutes, then lost in overtime at Denver, 4-3. Diana Brunkhardt scored off a throw-in in the 82nd, Jamie Norwood tied the score by curling in a corner kick in the 87th, and Mychael Movius's second goal of the game won it four minutes into the extra period.

RISING GAUCHOS: UC Santa Barbara, favorite in the underrated Big West Conference, played No. 12 Tennessee tough in a 1-0 loss at Knoxville, then routed No. 25 Charlotte, 4-0, as Jen Borcich netted a pair of goals.

Cal Poly, another Big West power, topped highly regarded Loyola Marymount, 1-0, on Becky Clark's goal in San Luis Obispo.

How the Top 25 fared:

1. North Carolina (2-0-0)
8/29 vs. Washington State (4-0) at Seattle (Pac-10/ACC Challenge), 8/31 at Washington (2-1 OT) (Pac-10/ACC Challenge)

2. Stanford (1-0-0)
8/31 vs. Long Beach State (1-0)

3. UCLA (1-0-1)
8/29 at Santa Clara (1-1 OT), 8/31 at Pepperdine (2-0)

4. Santa Clara (1-0-1)
8/29 vs. UCLA (1-1 OT), 8/31 at San Jose State (9-1)

5. Texas (1-1-0)
8/29 vs. East Carolina (5-3) at Cary, N.C., 8/31 at Duke (2-3)

6. Notre Dame (2-0-0)
8/29 vs. Hartford (9-1) at Storrs, Conn. (UConn adidas Classic), 8/31 vs. Wake Forest (3-0) at Storrs, Conn. (UConn adidas Classic)

7. Portland (1-1-0)
8/29 at Colorado (1-0), 8/31 at Denver (3-4 OT)

8. Penn State (1-1-0)
8/29 at Florida (1-2), 8/31 at Florida State (2-1)

9. Virginia (1-0-0)
8/30 vs. West Virginia (1-0), 9/1 vs. William & Mary

10. Pepperdine (1-2-0)
8/29 vs. UC Irvine (1-0 OT), 8/31 vs. UCLA (0-2)

11. West Virginia (0-1-0)
8/30 at Virginia (0-1), 9/1 vs. Michigan State

12. Tennessee (2-0-0)
8/29 vs. UC Santa Barbara (1-0), 8/31 vs. Fresno State (3-1)

13. Florida State (0-2-0)
8/29 vs. USC (1-2), 8/31 vs. Penn State (1-2)

14. Arizona State (2-0-0)
8/29 at Hawaii (4-0) (No Ka Oi Tournament), 8/30 vs. Bowling Green (5-1) at Honolulu (No Ka Oi Tournament)

15. Connecticut (1-0-1)
8/29 vs. Wake Forest (0-0 OT) (UConn adidas Classic), 8/31 Central Connecticut State (4-1) (UConn adidas Classic)

16. California (1-0-1)
8/29 vs. Wisconsin (2-1) (Cal Invitational), 8/31 vs. Montana (1-1) (Cal Invitational)

17. Texas A&M (2-0-0)
8/29 vs. TCU (6-0), 8/31 vs. SMU (3-1)

18. Maryland (1-1-0)
8/29 at Washington (1-2 2OT) (Pac-10/ACC Challenge), 8/31 vs. Washington State (3-0) at Seattle (Pac-10/ACC Challenge)

19. Clemson (1-0-0)
8/29 vs. South Carolina (1-0 OT), 9/1 vs. Wofford

20. Nebraska (2-0-0)
8/29 vs. DePaul (1-0), 8/31 vs. Iowa (3-0)

21. USC (1-1-0)
8/29 at Florida State (2-1), 8/31 at Florida (3-4)

22. Villanova (2-0-0)
8/29 vs. Lehigh (1-0 OT), 8/31 vs. Rider (2-0)

23. Auburn (1-0-0)
8/29 at UAB (3-0)

24. Duke (2-0-0)
8/29 vs. Campbell (6-0), 8/31 vs. Texas (3-2)

25. Charlotte (0-2-0)
8/29 vs. Fresno State (1-3), 8/31 vs. UC Santa Barbara (0-4)