The Frogs are looking to advance to the College World Series for the first time in three years.
TCU Baseball begins fall practice headlined by a game in Globe Life Park against the Texas Rangers Futures Camp squad on Oct. 1.
The team has lost seven of their last eight games.
Jared Janczak has pitched just 11.1 innings this season and will look to bring more consistency to the Horned Frogs' starting rotation.
The Horned Frogs won tight games on Saturday and Sunday to complete the series comeback.
A balk by the Mavericks' closer scored Hunter Wolfe and secured the team's second walk-off win of the season.
Nick Lodolo has not lost a start since Feb. 22.
Despite trailing by as much as five, the team got hot late and won 12-8 over the ninth ranked Longhorns.
The Horned Frogs loss evens the series at 1-1 heading into Sunday's rubber match.
The Horned Frogs collected 21 hits and scored their highest run total since 2012.