The 23-year-old from Spain will qualify in first place from her group if Aryna Sabalenka beats Iga Swiatek in the late match. Badosa could also advance, with the final position to be determined, if Swiatek prevails in three sets.
“It was quite a tough match. I served well. I fought for every point. I knew was going to be a battle against Maria,” said Badosa. “I think I stayed aggressive. I was moving well. When you win these kind of matches you have to do a little bit of everything well’.”
The WTA Finals, canceled last year because of the pandemic, are played in a round-robin format with the top two players from each group of four moving on to the semifinals.
Anett Kontaveit has already secured a semifinal place.
The semifinals will be played on Tuesday and the final is set for Wednesday at the Centro Panamericano de Tenis in Zapopan, a suburb of Guadalajara, the second largest city in Mexico.
Badosa, ranked No. 63 a year ago, is having a breakthrough season. She won the first two titles of her career in 2021 (Belgrade and Indian Wells) and is among the six players to have made their top-10 debut this season.
“To be honest, I’m quite new. I was 70, 80 in the world at the beginning of the year. I think I got my first top 10 win maybe four months ago, and I needed experience,” Badosa said. “When I got that experience, all of that things, it went well. I think I’m quite competitive. I think I needed a little bit to adjust myself, to be here and play these kind of matches, to learn.”
“I think it was a very high-level match from both of us. Even though I lost, that gives me a lot of confidence for my last match in the round-robin,” said Sakkari, who remains in contention. “I haven’t seen any combinations or anything. I know that I’ll give myself a better chance if I win the next match. I’m just going to focus on that. Anything else, it’s just irrelevant at the moment.”
The WTA Finals are being played in Guadalajara for this year only, with the event scheduled to return in 2022 to Shenzhen, China.