Scores of the match, held at the Kansas Expocentre in Topeka, Kan., were 25-21, 26-24, 19-25, 25-21.
Oregon State improves to 20-12, while Creighton finishes its season with a 25-9 record.
Oregon State won a tight first set, 25-21, The teams were tied 7-7 before OSU went on an 8-2 burst, including a 5-0 service run by Tayla Woods. CU would trail 18-13 before Maggie Baumert served a 7-0 run that featured a pair of aces and put the BIG EAST champs in front, 20-18. OSU regrouped after a timeout. Four straight kills from the Beavers gave OSU the lead for good, clinching the set on a tip from Arica Nassar. Kate Elman made her return to the libero spot and had eight digs for CU in the first set, while Maggie Baumert had eight assists and seven digs for the Jays.
The second followed a similar pattern, this time featuring 14 ties and nine lead changes. Creighton led 21-19 after a back-row kill from Katie Neisler, but OSU would score 3-of-4 points after a timeout to knot the score at 22-all. The Beavers earned a pair of set points at 24-22, only to see Jess Bird get a kill and Ashley Jansen an ace to tie things up. But Oregon State earned another set point on a kill from Amanda Brown, then won it on an ace by Mary-Kate Marshall.
The Beavers raced to a 10-6 lead in the third set, but Creighton answered to take a 13-12 lead. Once in front, the Jays never relented, extending the lead to 18-15 on a Bird kill, then 22-16 after a kill from Kelli Browning. A Katie Neisler ace closed out the 25-19 win in the third set.
Oregon State went up 7-4 in the fourth set after a pair of aces during Brown’s 4-0 serving run, and the Jays never got within one the rest of the way. CU trailed by as much as 18-12, only to score three straight points to cut the gap in half. But it would be too little, too late, as OSU closed out the victory in its first NCAA Tournament match since 2001, and first postseason victory in program history.
McNary had a match-high 17 kills for CU, with Bird (15) and Browning (10) not far behind. Bird (15 digs) and Baumert (47 assists, 16 digs) finished with double-doubles, while Marysa Wilkinson led CU with four blocks. The Bluejays had 61 kills, seven aces, 95 digs and 7.5 blocks while hitting .188.
Oregon State was led by 14 kills from Pac-12 Freshman of the Year Marshall, just ahead of Brown (13) and Katelyn Driscoll (12). Woods had 44 assists and 11 digs, while Hannah Troutman led all players with 26 digs on the afternoon. OSU had 51 kills, eight aces, 93 digs and nine blocks on .186 hitting.
The match was the final one for the most victorious senior class in school history, as Browning, McNary, Neisler and Michelle Sicner combined to win 94 matches with two regular-season conference titles and two conference tournament titles, as well as two NCAA Tournament victories to their credit.
Oregon State advances to the second round of the NCAA Tournament, where it will meet Arkansas-Little Rock. The Trojans defeated No. 16 seed Kansas in five sets.