Oklahoma State and Texas Tech punched tickets to the NCAA Division I Baseball Championship Super Regionals by winning their respective regionals this past weekend. 
Texas Tech (43-17) earned a trip to a second-consecutive and fourth overall NCAA Championship Super Regional on Sunday with a 3-0 weekend and a 3-0 shutout win over Dallas Baptist in Lubbock. 
Oklahoma State fell 5-2 to UConn in the first Oklahoma City Regional Final game in Oklahoma City. However, the Cowboys (39-19) bounced back to collect a 3-1 win over the Huskies on Monday and will make their fifth overall Super Regional appearance and first since 2016. 
OSU and Texas Tech will face each other in the Lubbock Super Regional. The winner will advance to the Men's College World Series, meaning it will be the sixth-consecutive year and 16th time since 1999 that at least one Big 12 squad will be in the CWS. The series is slated to begin on Friday, June 7 with a 2 p.m. CT first pitch. 
On Sunday, TCU's 9-5 win over Central Connecticut State propelled the Horned Frogs to the Fayetteville Regional final. However, host Arkansas collected a 6-0 shutout to eliminate TCU. In Los Angeles, Baylor was eliminated on Sunday after falling 11-6 to UCLA in the elimination game. West Virginia was eliminated in tough walk-off fashion with an 11-10 loss to Texas A&M. 
On Saturday, Oklahoma State used a two-out home run from Trevor Boone in the top of the ninth to come-from-behind and knock off Nebraska, 6-5, to advance to the Oklahoma City Regional final. A three-run second inning propelled the Red Raiders to a 3-2 victory over Dallas Baptist.
In other action on Saturday, Baylor catcher Shea Langeliers went 5-for-6 with three homers and set a NCAA Championship and Baylor single-game record with 11 RBIs to propel the Bears to a 24-6 win over Omaha. West Virginia fell in a 4-0 shutout to Duke and TCU dropped a 3-1 decision to host Arkansas.  
Big 12 teams opened NCAA Championship play with a 4-1 record on Friday.
Oklahoma State, TCU, Texas Tech and West Virginia collected opening wins in their respective regionals to advance in the winners bracket, while Baylor dropped a heartbreaker.
TCU registered a 13-2 upset win over No. 2 California in the Fayetteville Regional, while Baylor dropped a tough pitching duel to Loyola Marymount, 3-1. exas Tech, which boasts of the nation's best offenses, sprinted out to an 11-2 victory over Army West Point in Lubbock. 
West Virginia fought off an early deficit and picked up a 6-2 win over Fordham in its first regional game in Morgantown since 1955. In the Oklahoma City Regional, the Cowboys registered a 2-0 shutout over Harvard.
2019 NCAA Championship Regional Results
 
Fayetteville Regional hosted by Arkansas
#3 TCU 13, #2 California 2 
#1 Arkansas 3, #3 TCU (33-26) 1
#3 TCU 9, #4 Central Conn. St. 5
#1 Arkansas 6, #3 TCU 0 (TCU eliminated)
Los Angeles Regional hosted by UCLA
#3 Loyola Marymount [CA] 3, #2 Baylor 1
#2 Baylor (34-18) 24, #4 Omaha 6
#1 UCLA 11, #2 Baylor 6 (Baylor eliminated)
Lubbock Regional hosted by Texas Tech
 #1 Texas Tech 11, #4 Army West Point 2
#1 Texas Tech (40-17) 3, #2 Dallas Baptist 2 
#1 Texas Tech 3, #2 Dallas Baptist 0 (Texas Tech advances to Lubbock Super Regional)
Morgantown Regional hosted by West Virginia 
#1 West Virginia (37-20) 6, #4 Fordham 2
#3 Duke 4, #1 West Virginia 0
#2 Texas A&M 4, #1 West Virginia (38-21) 0 (West Virginia eliminated)
Oklahoma City Regional hosted by Oklahoma State
#1 Oklahoma State 2, #4 Harvard 0
#1 Oklahoma State 6, #3 Nebraska 5
#2 UConn 5, #1 Oklahoma State 2
#1 Oklahoma State 3, #2 UConn 1 (Oklahoma State advances to Lubbock Super Regional)