KNOXVILLE, Tenn. -- Stanford forward Chiney Ogwumike has at least one career achievement that eluded her older sister.
Ogwumike had 21 points and a career-high 19 rebounds Saturday, and Stanford remained undefeated with a 73-60 victory at No. 10 Tennessee, giving the top-ranked Cardinal only its second win in Knoxville in 13 attempts.
Stanford won at Tennessee for the first time since an 82-65 victory on Dec. 15, 1996.
Ogwumike's older sister, Nneka Ogwumike of the WNBA's Los Angeles Sparks, scored 42 points in Stanford's 97-80 win over Tennessee last year.
But the No. 1 pick in the most recent WNBA draft never won at Tennessee during her college career.
"One thing Nneka didn't do was get a win here at Tennessee, so I wanted to one-up her," Chiney said. "It was a great game."
Stanford's Amber Orrange scored 14 points. Toni Kokenis and Bonnie Samuelson each added 11 points, and Joslyn Tinkle had 10 points for the Cardinal, which hosts No. 2 Connecticut on Saturday.
"The most important thing now is that we keep improving and stay healthy," Stanford coach Tara VanDerveer said. "We've got great leadership and great chemistry. I'm hoping that we'll be playing better in March and April."
Tennessee was seeking its first home win over a top-ranked opponent since a 77-72 victory over Louisiana Tech on Jan. 22, 1996. The Lady Vols are 14-32 against top-ranked opponents, and they are 2-11 when facing No. 1 teams at home.
Tennessee coach Holly Warlick questioned her team's effort after the game and was more disappointed in this performance than she was after a 76-53 loss at No. 3 Baylor on Tuesday.
"This will change," Warlick said. "As coaches, we'll make some changes, too. It's time to grow up."
Bashaara Graves had 15 points and 12 rebounds for Tennessee (7-3). Meighan Simmons added 12 points, while Ariel Massengale and Cierra Burdick had 11 points each.
Stanford (11-0) was coming off a 53-49 squeaker at No. 21 South Carolina on Wednesday, but the Cardinal never trailed Tennessee and owned a double-digit lead most of the way.
Facing a national title contender for the second straight game, the Lady Vols again struggled to make shots.
Tennessee missed its first 11 shots against Baylor to fall behind 17-0 and went on to trail 41-16 at the intermission, its largest halftime deficit in school history.
The Lady Vols shot 31.9 percent against Stanford and missed their first 12 attempts from 3-point range.
Stanford grabbed a 33-21 halftime lead by relying on Ogwumike and capitalizing on Tennessee's cold shooting.
Ogwumike, who entered the game averaging 21.9 points and 12.2 rebounds, had 13 points and 12 rebounds by halftime.