LUBBOCK, Texas (AP) -- Texas Tech's outside shooting extended its winning streak.

Amber Tarr scored 23 points, and Natalie Ritchie added 21 as 13th-ranked Texas Tech beat No. 3 Vanderbilt 81-71 Saturday for its sixth straight victory.

"Ritchie and Tarr had both their feet under them, set, looking at the basket," Commodore coach Jim Foster said.

Tarr went 4-for-8 on 3-pointers, while Ritchie was 5-for-12.

"They knew they couldn't sag off on anybody on the outside," Tarr said.

"Now we have to go back it up," Lady Raiders coach Marsha Sharp said. "We gained a lot of confidence. This is a big statement for our team."

Tech staved off a second-half comeback by the Commodores, seemingly coming up with a 3-pointer whenever Vanderbilt (11-2) got close. Tech put the game out of reach with a 14-6 run in the middle of the second half.

"We made a lot of big shots, got in our comfort zone and were able to win," Sharp said.

Zuzi Klimesova and Chantelle Anderson each scored 26 points to lead Vanderbilt, which had won eight games in a row. Klimesova recorded her fourth double-double of the season, 26th of her career with her 26 points and 11 rebounds.

The Lady Raiders denied Vanderbilt the outside shot, allowing only one 3-pointer from Ashley McElhiney.

"This game was much more about defense, or lack thereof, than our offense," Foster said.

Up against a taller team, Tech used its quickness to move the ball around the perimeter and score from the outside. Texas Tech scored only 14 points inside the paint.

"We feel good about being able to attack from the perimeter," Sharp said. "We stepped up and made plays in all positions."

Jia Perkins added 17 points and had nine assists for Tech, while Ritchie put up half the Lady Raiders' 24 3-pointers.

Tech led 37-28 at halftime.

Vanderbilt Head Coach Jim Foster:
We got too one dimensional on offense and our defense was just not up to it. We had a lack of determination in not getting where we needed to be. Ten (3-pointers) are a lot to give up. I don't think we did a great job of knowing where Perkins (Jia) was - she got into areas where we didn't contest.

Texas Tech Head Coach Marsha Sharp:
First of all, I want to thank our crowd. They made an important statement by coming today and gave us a big boost - they are a big part of what happened today. We stepped up and made plays on both ends of the floor. We continue to scrap and fight and we tried to limit Vanderbilt's shots. We had enough confidence to knock the 3's down - our shooters made big plays. I felt really good with our first shots (3-pointers) went down.

Texas Tech's Amber Tarr:
We're very confident in our shooters - you can't sag off any players. They (VU) didn't know where we were going - we caught them on their toes - I mean heels.

Texas Tech's Natalis Ritchie:
Coach Sharp told us they (VU) would run a zone defense, so we knew they would come out on us and then opened the post girls up.

Texas Tech's Tanisha Ellison:
Chantelle Anderson is one of the best post players in the country and we used our athleticism to keep the ball away from her.