The Oregon State Beavers are the No. 1 national seed in baseball's postseason for the first time in school history.

The Beavers will host UNLV, UC Irvine and North Dakota State in the Corvallis Regional this weekend at Goss Stadium to kick off the NCAA tournament. Oregon State's highest national seeding previously was No. 3 last season.

Meanwhile the Washington Huskies were selected as an at-large team in the field of 64. The Huskies will  play in the Oxford, Miss. Regional. It is the third time the Huskies have been sent to the state of Mississippi for NCAA Baseball play.

The NCAA tournament opens Friday with 16 four-team, double-elimination regionals. Best-of-three super regionals will be held next week, with those winners moving to the College World Series in Omaha.

The Huskies (39-15-1) will face Georgia Tech (36-25) in their first round game on Friday, May 30 at 1 p.m. PT (ESPN3). They will play either host Mississippi (41-18) or Jacksonville State (36-25), who will play at 5 p.m. ET Friday, on Saturday.