The game ended tied 0-0, but the eighth-seeded Horned Frogs (8-9-3) advanced on penalty kicks 4-2. After fourth-seeded UT (8-11-1) missed the first penalty kick, TCU put away their first three to take a 3-2 advantage into the fourth round of kicks. Both goalkeepers came up with big stops that round before Johnson stepped up and knocked in the game-winner.
"Fantastic effort by everyone on the team," said TCU head coach Eric Bell. "We were fortunate to come away with a tie at the end of the game. We lost a couple players during the game and the kids battled. People off the bench battled in a tremendous way and I couldn't be more elated with them. We're still playing and it's good just to still be playing. We're happy."
Texas recorded PK conversions from Lindsey Meyer and Sharis Lachappelle. TCU tallied its four scores from Lindsy Schafer, Sarah Schweiss, Serena Smith-Banas and Johnson.
Johnson, a Chatsworth, Calif.-native, had not taken a penalty kick for TCU this season.
This was UT's first penalty shootout since 2007.
TCU advances to its first-ever postseason championship match Sunday at 1 p.m. CT where it will face No. 2 Baylor. That game will be broadcast live on FSN.
This is the second time in Big 12 history and first time since 2003 that a No. 8 seed has made it to the championship game.