The Ducks gave No. 13 Arizona State all it could handle in the first half.
However, the Sun Devils outscored Oregon 45-31 in the second half to pull out a 70-58 win Friday at the Wells Fargo Center in Tempe, Arizona.
The Ducks fall to 8-10 (1-6 Pac-12) while ASU moves to 18-1 (7-0) continuing its best start in school history.
Jillian Alleyne tallied her 16th double-double of the year, recording 17 points and 12 rebounds. Drea Toler, in her first start of the season, recorded 10 points, including eight in the first half.
Lexi Bando tallied nine points while Lexi Petersen and Amanda Delgado each had eight. Petersen recorded five assists.
Megan Carpenter finished with six points, four blocks and five rebounds.
The Ducks got out to a 17-9 lead early in the game. ASU got back into the game and took the lead, 21-19, with 5:23 left in the half. Going into the locker room, the Ducks held onto a 27-25 lead.
Oregon had 11 turnovers at that point. It was the first time all season ASU had trailed at the half. 
ASU came out and scored the first 10 points of the second half, though. After three straight shots from downtown, ASU stretched its lead to 50-35 with 10:44 remaining.
“Proud of the effort for the entire game, outside of maybe that six or seven minute stretch to start the second half,” head coach Kelly Graves told Terry Jonz on the Oregon IMG Sports Network after the game. “I thought we let down defensively It was almost as if we came out in the second half thinking, ‘Hey, we’re a really good basketball team, whatever.’ We just didn’t have that same kind of intensity. It’s too bad.”
Alleyne’s 12 rebound effort now places her second all-time in the Oregon record books. She moved ahead of Alison Lang (1,151 boards from 1980-84) with 1,157 career rebounds. Bev Smith is the all-time leader with 1,362 total rebounds.
ASU used a balanced scoring attack, seeing three players reach double figures: Katie Hempen (11 points), Promise Amukamara (10) and Elisha Davis (10).
Oregon committed 17 turnovers compared to ASU’s eight.
“There are just some times we are just rudderless,” Graves told Jonz. “We don’t have that anchor, that person or persons that are really organizing us defensively. We kind of looked shell-shocked a couple of times. Couple of breakdowns turns to layups.
“We’ll learn from it. 32 minutes of really good, pretty solid basketball. But in this league, against a top-10 team, you need 40 minutes.”
Notes:
Graves said Katelyn Loper was unavailable for the game. He said her right “elbow was all locked up” and could not shoot. She came into the game averaging 9.4 points per game. … Toler’s start was the first career of her career. … Overall, the Ducks shot 46.2 percent from the floor, their fourth-best performance shooting of the season.
The Ducks will travel south to Tucson to play Arizona (7-10, 0-6 Pac-12) on Sunday, 12 p.m. PST tipoff.
Follow Jonathan Hawthorne on Twitter @Jon_Hawthorne