PRAGUE, Czech Republic - Having never before reached a WTA quarterfinal, Switzerland's Jil Teichmann now leaves the J&T Banka Prague Open as a champion.

The Swiss qualifier and World No.146 outlasted home favorite Karolina Muchova in a two hour and 44-minute final, 7-6(5), 3-6, 6-4 to raise her first career trophy.

The 21-year-old former junior World No.3 becomes the first player in five editions of the tournament to win the title after winning the first set, as each of the past four champions had to rally from a set down to win the trophy.

She also becomes the first qualifier to win the title in Prague, and is the 20th different WTA champion in 21 events so far this season.

"I'm just speechless, honestly. I just fought and fought. It was a great battle and I'm just relieved that it's done," the Swiss said. 

"I'm exhausted, but Kaja played a great match as well. I knew it was going to be a battle, but in the end, one has to win."

The Swiss needed six set points to win the opening set, as wildcard Muchova saved three on serve at 5-6, after twice being a break up, and saved two more set points before succumbing in over an hour of play.

Teichmann later rallied from a break down twice in the decider, winning four of the last five games and denying the home crowd an opportunity to see its fourth Czech champion on home soil in five years.

Among her victories over the course of the week was a thrilling three-set second-round comeback against two-time Grand Slam champion and former World No.2 Svetlana Kuznetsova, and a statement 6-3, 6-0 win over No.9 seed Barbora Strycova in the semifinals.