TUCSON, Ariz. (AP) — By now, everyone in the Pac-10 knows about Michael Dickerson, No. 15 Arizona’s top scorer. Yet no one seems to know what to do about him.
Washington State didn’t come close Thursday night.
Dickerson scored 21 of his 32 points in the second half and the Wildcats pulled away from the Cougars for a 100-86 victory, their 24th straight in the series. Washington State hasn’t beaten the Wildcats since Jan. 30, 1986.
“We couldn’t do anything to stop Dickerson,” Cougars coach Kevin Eastman said. “He’s too quick for anybody.”
The Cougars trailed 43-38 at halftime before Dickerson and Miles Simon took over.
Simon, who had 16 of his 24 points after the break, helped the Wildcats (18-7, 10-5 Pac-10) break away.
Dickerson made 13-of-22 shots and 4-of-4 free throws to equal his career high, set Jan. 11 against Arizona State. It was his fifth 30-point game of the season.
“They played man-to-man, and when they play man, I feel I can take anyone off the dribble,” said Dickerson.
Donnell Harris, a sophomore, started at power forward because Bennett Davison missed a class and was benched. He had 11 points and 12 rebounds.
“I wanted to make the most of it,” said Harris, who had 10 starts early on but had been a reserve in 10 games since Jan. 18.
“We got a big lift from Donnell,” coach Lute Olson said. “Seven offensive rebounds, that’s really important. He was after everything.”
Carlos Daniel scored 26 points for the Cougars (12-15, 4-11), and Isaac Fontaine had 16 points, seven rebounds and six assists.
Daniel scored 12 in the first 9:33 of the second half, ending with a three-point play that cut Washington State’s deficit to 71-59.
Then he turned his right ankle when he stepped on Simon’s foot with 9:52 to go. He then sprained his left ankle with 8:49 to play while charging Eugene Edgerson, his fourth foul.
With Daniel on the bench until late in the game, the Cougars were finished. They lost starting point guard Kareem Jackson in the first minute when he took an elbow to his right cheekbone. Jackson was taken to University Medical Center and did not return to the McKale Center.
“The bottom line is that they are so athletic that it’s hard to match up with them,” Daniel said. “They have so much speed that you can’t set up your defense, which causes havoc.”
The Wildcats never trailed after a 13-0 run midway through the first period.
Arizona led 23-13 at the end of the surge, which Dickerson started with a pair of short jumpers and Jason Terry capped with a breakaway layup after stealing a pass.

GAME SUMMARY
No. 15 Arizona 43 57 — 100
Washington St. 38 48 — 86

Washington St. — De la Fuente 3-8 0-0 7, Johnson 2-5 0-0 4, Daniel 10-15 6-7 26, Jackson 0-0 0-0 0, Fontaine 7-14 0-0 16, Pengelly 4-8 0-0 10, Archibald 3-4 0-2 8, Crosby 2-8 1-2 6, Slotemaker 3-7 2-4 9. Totals 34-69 9-15 86.
Arizona — Harris 5-11 1-2 11 Dickerson 13-22 4-4 32, Bramlett 3-4 2-3 8, Bibby 3-10 0-1 6, Simon 9-14 3-3 24, Davison 2-4 1-2 5, Terry 3-7 2-2 9, Edgerson 1-3 3-6 5, Lee 0-0 0-1 0, Pastner 0-1 0-0 0, Ash 0-0 0-0 0. Totals 39-76 16-24 100.
3-Point goals — Washington St. 9-18 (Archibald 2-2, Fontaine 2-4, Pengelly 2-5, de la Fuente 1-2, Crosby 1-2, Slotemaker 1-3), Arizona 6-18 (Simon 3-4, Dickerson 2-7, Terry 1-4, Bibby 0-3). Fouled out — None. Rebounds — Washington St. 39 (de la Fuente 8), Arizona 41 (Harris 12), Assists — Washington St. 17 (Fontaine 6), Arizona 19 (Bibby, Terry 5). Total Fouls — Washington St. 20, Arizona 17. Technical — Daniel. A — 14,372.