Coco Gauff took down Karolina Muchova of the Czech Republic 6-3, 6-4 in Sunday’s final to win the Cincinnati Open in Mason, Ohio.

It marks Gauff’s first title at a WTA 1000 event — two weeks after she won in Washington for her first career WTA 500 title. At 19, she became the youngest woman to capture the title at the Cincinnati-area event.

Gauff, the 2022 French Open runner-up, tossed her racquet in the air and jumped up and down in glee after surviving a 1-hour, 56-minute match played in temperatures approaching 90 degrees.

Gauff, the No. 7 seed, took down world No. 1 Iga Swiatek of Poland for the first time in eight attempts in Saturday’s semi-final match before defeating Muchova, who is ranked 17th in the world.

Gauff was the tournament’s fourth teenage finalist and first since Vera Zvonareva in 2004.

“This is unbelievable,” Gauff said during the post-match trophy presentation. “I’m just happy to be here for this moment.

“I want to congratulate Karolina for an incredible run in this tournament,” she added. “Hopefully, we’ll play more often, and on a bigger stage than this.

“I’m really happy with how I was able to manage this week,” Gauff said. “I got a huge win yesterday (Saturday), a big one today (Sunday).

“Karolina, she’s not an easy player. It’s really good to see her back at the top. I think she’s one of the most talented players on tour.”

On Sunday, Gauff won 35 of 50 first-service points (70 percent) and saved six of nine break points. She also broke Muchova’s serve five times in eight opportunities.

“Today I really won it off of breaking serve, to be honest,” Gauff said. “I wasn’t really serving as good as I did against Iga. I don’t know if it was nerves. I wasn’t that nervous, to be honest. Also a combination of the long match yesterday. I wasn’t serving as well.

“I think that’s what makes a champion, is how you’re doing on the days you aren’t feeling so great. I’m glad I was able to push through.”

Gauff won four of the final five games in the first set. Then she took a commanding 5-2 lead in the second set by breaking Muchova’s serve twice. She failed to convert on three match points in the eighth game of the set but got it done in her next service game.

Muchova, the 2023 French Open runner-up, upset No. 2 seed Aryna Sabalenka of Belarus on Saturday to advance to the final. She will crack the top 10 of the world rankings on Monday despite losing to Gauff.

“It’s always a thing that is in your mind when you play tennis, to make it to top 10,” Muchova said. “It’s happening for me tomorrow, so that’s really nice result.”