A few highlights from Wednesday's action in college baseball:

• Stephen F. Austin State earned a big upset win against Texas Christian, 4-3. The Lumberjacks improved to 19-7 heading into their weekend showdown against Texas State, which carries an identical 8-1 Southland Conference record into the series. Wednesday's win was SFA's first against TCU since 1990. Stephen F. Austin did all of its scoring in the second and third innings, and six relievers made the lead stand up.

• Southern Mississippi beat Mississippi 4-3 in 10 innings. Ole Miss left fielder Tanner Mathis dropped a short fly ball in the 10th, allowing Travis Creel to score the winning run. Boomer Scarborough (7.2 IP, 6 H, 3 ER) was solid in a no-decision for the Golden Eagles.

• Lamar upset Baylor, 7-3. Seven Cardinals pitchers stranded 13 Baylor runners, and Aaron Buchanan went 2-for-4 with three RBIs to lead the Lamar offense.

• Texas A&M scored three runs in the 10th to beat Texas-Arlington, 7-4. The Aggies are 4-1 in extra-inning games this year.

• Arizona beat New Mexico, 10-9, on Robert Refsnyder's walk-off homer in the ninth.

• Derek Hamilton had three hits to lead Rice past Sam Houston State, 5-2. Shane Hoelscher, in the lineup at third base with Anthony Rendon back at DH, drove in two for the Owls, as did catcher Craig Manuel.

• Missouri beat Texas State 3-2 in 11 innings. The Bobcats fell to 1-5 in midweek games, all of them against either Big 12 foes, Rice or Texas Christian.

• Florida International beat Tulane, 6-1, behind three hits from Garrett Wittels and six strong innings from Kyle Fitzpatrick.

• Hawaii topped Wichita State, 8-7, in 12 innings. The Rainbows won it with an unearned run in the 12th.