EUGENE, Ore. (AP) -- Last season, UCLA and Oregon split their conference games, and as a result ended up tied for the Pac-10 championship.

But Thursday night, the Ducks got the season sweep of the Bruins as Shaquala Williams scored 24 points and Oregon survived a 39-point performance from Bruins forward Maylana Martin to upset No. 22 UCLA 89-72.

With four games remaining in the season, the Ducks (20-6, 11-3) have won six straight and are sitting by themselves in first place in the conference while UCLA (15-8, 9-4) is now a game and a half behind.

"The only thing we can do now is win all of our games and hope Oregon messes up," Martin said.

If Oregon plays like it did in the second half of the game the rest of the season, Martin's wish won't come true.

After the two teams matched each other basket for basket in the first half, entering halftime with a 36-36 tie, Oregon outscored the Bruins 9-0 in the first two minutes of the second half. The Ducks turned the burst into a 22-5 that gave them a 58-41 lead.

"We came out like it was 0-0," Williams said of her team's second half approach. "We just tried to push the ball down their throats."

UCLA could get no closer than 11 points the rest of the way.

"A lot of Martin's points were when we were in a zone defense and weren't getting our rotation right," said Oregon's Angelina Wolvert, who added 11 points and six rebounds.

Lindsey Dion also had 17 points for the Ducks.

But Martin, who made 17-of-22 shots, didn't get any help from her teammates, as Nicole Kaczmarski was the only other Bruin with more than six points, scoring 11.

"They only had one player -- that was Martin. Without her, it wasn't even close," Williams said.

Williams scored 11 points, including three 3-pointers, in the first nine minutes of the second half. She hit a short jumper, followed by a 3-pointer, after the Bruins had trimmed Oregon's lead to 58-47 with 12 minutes to play.

That was followed by a jumper from Dion, a rebound basket by Brianne Meharry, and a pair of fast break lay-ins by Dion as the Ducks pushed their lead to 71-53, their largest of the game.

"Any time you go on the road, you can't let a team score three or four times down the floor and you not score," UCLA head coach Kathy Olivier said. "You need defensive stops, and we didn't take care of the ball, and that cost us."