There will be no secrets on Friday when seventh-seeded Oregon State plays 10th-seeded Washington State in the opening round of the Pacific-10 Conference women’s basketball tournament.

They’ve already met twice this season, most recently on Feb. 16 in Pullman. Both coaches have watched plenty of video and they know their opponent inside-out, from top to bottom.

“We pretty much know them, what they do well and everything about them, as much as they know about us,” WSU coach Sherri Murrell said Tuesday of the Beavers, who defeated WSU 68-67 in overtime in Corvallis on Jan. 21 and 59-50 in Pullman.

Tip-off is set for 6 p.m. at the HP Pavilion in San Jose. The winner advances to face second-seeded Arizona State at 1:15 p.m. Saturday in the quarterfinals; the loser is eliminated from the tournament.

The teams enter the tourney headed in opposite directions. The Beavers (14-13, 7-11) have won four of the last six and can solidify their case for a WNIT berth by winning. OSU associate athletic director Todd Stansbury, who oversees women’s basketball, said Monday that OSU would bid for a home first-round game if invited to the 40-team field.

The Cougars (8-19, 2-16) lost by a combined 41 points in the Bay Area this past weekend. They’ll miss the postseason for the 15th consecutive year unless they make a miracle run to the championship, which is unlikely as the 10th seed has never won a tournament game.

“The past two games were battles, so we have to be ready to go to battle (again),” OSU senior guard Mandy Close said. “We’ll prepare this full week for them, we’ll come out with a lot of energy and be ready to go.”

So, it’s basically a toss-up. Both regular season games were competitive and the Cougars could have won either night with a few more baskets or a few more defensive stops.

“Washington State is a gritty team, they work hard and they’ve got good personnel,” OSU coach LaVonda Wagner said. “They’re not going to lay down for us.

“This will be a good test, it’s on the road at a neutral site. They’ll be ready to play, and so will we.”

Added Murrell: “It’s about playing up to your potential, for both teams. Just putting enough of a solid game together to win. It’s not about Oregon State. We know what they can do, we know their strengths and weaknesses. I’m more concerned about Washington State.”

OSU won the regular season series in different fashion. OSU led the entire game in Corvallis before the Cougars forced overtime with a last-second 3-pointer by Dani Montgomery. WSU then surged ahead 67-66 on a basket by Katie Appleton with 11 seconds remaining before Close drove the length of the court and scored the winning layin with two seconds to play.

In Pullman, the Beavers built a commanding 45-28 advantage with 12:44 remaining and then withstood a comeback that drew the Cougars within 52-48 with two minutes to play. OSU pulled away by hitting seven free throws down the stretch.

“We were able to weather their storm when they made a run at us in Pullman,” OSU senior post Karen Vickery said. “We need to focus on rebounding, because they’re one of the best rebounding teams in the Pac-10.”

WSU had a 44-34 advantage on the boards in Pullman, with a whopping 20 offensive rebounds.

“Everyone needs to bring their A-game, it’s the last stand for us,” Vickery said. “Washington State is going to be ready to go and we need to do the same.”

Murrell said after the Pullman defeat that she had “lost” her team. However, two days later that dispirited group rebounded and thrashed Oregon for its second Pac-10 victory.

“We had one of our lowest points of the season when we played them here,” she said. “We didn’t play well as a team, were not on the same page. Our energy level from Thursday to Saturday, when we beat Oregon, was night and day.

“We’re looking forward to giving them a better run. We feel like we have a good chance to win it.”

The OSU-WSU winner faces Arizona State (23-5, 14-4) on Saturday in the quarterfinals. The Sun Devils swept the season series against both teams, and have won nine consecutive games since losing to the Los Angeles schools on Jan. 6-8.

“There are always things to get better at and we certainly have things we need to be sharper at even though we had a good second round,” ASU coach Charli Turner Thorne said Tuesday.

“We know how good our conference is, and that on any given day almost anybody can beat anybody, especially on a neutral floor.”

The No. 7 seed is 1-3 against the No. 2 seed since the tournament’s inception in 2002.