EUGENE — Nia Jackson scored 24 points and Oregon defeated Oregon State 81-72 Sunday in front of a record crowd of 12,320 in its debut at Matthew Knight Arena.

EUGENE — Nia Jackson scored 24 points and Oregon defeated Oregon State 81-72 Sunday in front of a record crowd of 12,320 in its debut at Matthew Knight Arena.

Former Roseburg High and Umpqua Community College standout Kristi Fallin added 17 points for the Ducks (12-6, 3-4 Pac-10) and had five of Oregon's 13 3-pointers. Jasmin Holliday and Amanda Johnson each scored 10 points.

Alyssa Martin led the Beavers (7-11, 0-7), who have lost seven straight, with 21 points. El Sara Greer had 16 points, 11 rebounds and six blocks, and Sage Indendi added 14 points.

Oregon's new $227 million basketball facility opened Jan. 13 when the men's basketball team defeated Southern California. On Sunday the Ducks broke the attendance record for a Pac-10 women's game, topping the previous mark of 10,525 set when Stanford played at California in 2008.

Jackson was 8 for 12 from the field and scored at least 22 for the fourth time in Oregon's last five games.

She scored the final seven points of the first half to give the Ducks a 44-39 lead at the break. Ashley Buis and Jackson opened the second half with 3-pointers to push Oregon's lead to 50-41, and Fallin hit a 3 with 13:56 to play as the Ducks took their biggest lead of the game, 58-47.

After Oregon State scored six straight to cut its deficit to 58-53, Fallin drained another 3 for Oregon.

Martin and Greer scored inside on back-to-back possessions with under 10 minutes to play to bring the Beavers within four, 63-59, but that's as close as it got.

The Ducks made 13-of-30 3-pointers, while the Beavers were 5 for 22 from long range. Oregon also scored 20 points off 21 turnovers by Oregon State.

The Ducks made five 3-pointers early in the first half and took their second nine-point lead of the game with 9:51 to play following jumpers by Jackson on consecutive possessions to make it 29-20.

But the Beavers rallied by taking the ball inside to spark a 12-2 run, though the final points came on a 3-pointer by Indendi and a free throw by Angela Misa that gave Oregon State a 39-37 lead with 2:35 left before halftime.

Jackson answered for the Ducks, scoring on a game-tying jumper, a go-ahead 3-pointer and a pair of free throws with 5.9 seconds to play for a five-point lead.