There shouldn’t be too many secrets among the baseball teams gathered for the NCAA tournament’s Stillwater regional, which will start Friday.

 There shouldn’t be too many secrets among the baseball teams gathered for the NCAA tournament’s Stillwater regional, which will start Friday.
Top-seeded Oklahoma State (42-16) and second-seeded Wichita State (44-15) both are longtime national powers and familiar foes that have developed a not-always-friendly rivalry during the last three decades. The Cowboys and Shockers have met 79 times, including 13 times in the postseason.
No. 3 seed Texas Christian (43-17) is no stranger to Wichita State, having been swept earlier this season in a three-game series against the Shockers. And although they haven’t met since 2004, TCU and Oklahoma State have played numerous common foes.
About the only mystery is fourth-seeded Western Kentucky (32-25). The Hilltoppers won the Sun Belt Conference tournament title but have only played their first-round opponent, Oklahoma State, once, losing 6-3 in 1995.
Mountain West Conference champion TCU will play Wichita State in the regional opener, followed by the Western Kentucky-Oklahoma State game. The winner of the double-elimination regional will be determined either Sunday night or Monday.
The Stillwater regional winner will advance to a super regional to play the winner of a regional hosted by Florida State that also includes Florida, Tulane and Bucknell.
Oklahoma State is hosting an NCAA regional for the 10th time, but for the first time since 1997.
Oklahoma State led the Big 12 Conference in team batting at .330 and topped the league in six other offensive categories, while the Cowboys’ team ERA of 3.80 was the league’s lowest.
Three different players — Rebel Ridling, Matt Hague and Jordy Mercer — have at least 51 RBIs. Ridling is tops on the team with 65 and has hit 18 home runs.
Plenty of Wichita State fans also figure to make the two-hour drive south to Stillwater for the regional. The Missouri Valley Conference champion Shockers are hitting .316 as a team, led by third baseman Conor Gillaspie, who is hitting .421 with 10 home runs and 77 RBIs.
The Shockers have won six straight games, outscoring their opponents by a combined 84-21 and hitting .437 as a team during that stretch.
TCU and Wichita State last met in March in Wichita, with the Shockers winning 5-1, 3-2 and 5-1.
Sooners in Tempe
Oklahoma opens the NCAA tournament today at 4 p.m. CDT against No. 2 seed Vanderbilt in the Tempe Regional at Packard Stadium in Tempe, Ariz.
The other first-round matchup pits host Arizona State (45-11) versus Stony Brook (34-24) at 7 p.m.
The Commodores, the defending 2007 SEC Champions, were eliminated in the conference semifinals by Mississippi.  Vanderbilt enters the tournament ranked No. 22 in this week’s coaches poll.
Arizona State is the top seed in the regional and Stony Brook enters the tourney at No. 4.  Stony Brook is an automatic qualifier after winning the America East Tournament for the second time in the last five years.  Arizona State, the nation’s No. 3 overall seed, will be hosting its second consecutive regional and the third in the past four years.
The winner of the Tempe Regional will advance to play against the winner of the Long Beach Regional on June 6-8 or 7-9 in Super Regional action.