PORTLAND, Ore. — Trevon Duval had 22 points Thursday and top-ranked Duke pulled away for a 99-81 victory against surprisingly tenacious Portland State.

Marvin Bagley III added 18 points, and Grayson Allen had 14 points and nine assists for the Blue Devils (6-0) against the Vikings (4-1).

Duke trailed by as many as eight points but took control midway through the second half when Wendell Carter Jr.’s dunk put the Blue Devils in front, 67-62. They went on to lead by as many as 21 points.

(5) VILLANOVA 85, TENNESSEE 76: Jalen Brunson scored 25 points to help Villanova (5-0) rally from 15 down and beat Tennessee (3-1) at Paradise Island, Bahamas.

(9) NORTH CAROLINA 102, PORTLAND 78: Luke Maye scored 20 points and grabbed 10 rebounds, Joel Berry II added 18 points and visiting North Carolina (4-0) had five players in double figures in overwhelming Portland (2-2).

(15) XAVIER 83, GEORGE WASHINGTON 64: Trevon Bluiett had 20 points as Xavier (5-0) beat George Washington (2-3) at Las Vegas.

WESTERN KENTUCKY 77, (18) PURDUE 73: Darius Thompson hit two clinching free throws with 5.1 seconds left to help Western Kentucky (3-2) upset Purdue (4-2) at Paradise Island, Bahamas.

RHODE ISLAND 75, (20) SETON HALL 74: Jared Terrell made a running layup with 5.2 seconds left to give Rhode Island (3-1) a victory over Seton Hall (4-1) at New York.

(21) SAINT MARY’S 89, HARVARD 71: Jock Landale scored 26 points and Saint Mary’s (5-0) withstood getting outscored in the second half to beat Harvard (2-3) at Fullerton, California.

WOMEN

(7) MISSISSIPPI STATE 65, (24) ARIZONA STATE 57: Victoria Vivians scored 17 points and Roshunda Johnson added 16 to help Mississippi State (4-0) beat Arizona State (4-1) at Cancun, Mexico.

(8) BAYLOR 100, MISSOURI STATE 58: Lauren Cox had 18 points, 10 rebounds and seven blocked shots as Baylor (4-1) beat Missouri State (1-3) at Bimini, Bahamas.

(9) OHIO STATE 100, MEMPHIS 69: Stephanie Mavunga scored a career-high 35 points and had 16 rebounds to lead Ohio State (5-1) over Memphis (1-4) at Las Vegas.

(11) WEST VIRGINIA 75, BUTLER 68: Teana Muldrow had 18 points, seven rebounds and four assists, Naomi Davenport added 16 points and 15 boards, and West Virginia (4-0) beat Butler (3-2) at Melbourne, Florida.

(12) TENNESSEE 101, MARQUETTE 99: Anastasia Hayes scored the last five points in the final minute of overtime for Tennessee (4-0) against Marquette (1-2) at Puerto Aventuras, Mexico.