She shocked the world en route to her first Grand Slam title in Paris - and Jelena Ostapenko earned your votes for WTA Breakthrough of the Month.
WTA Staff

She arrived in Paris a teenager, and left a Grand Slam champion.

Latvia's Jelena Ostapenko took home her first career title on the grandest of stages, rallying from a set and a break down to defeat Simona Halep and win the French Open. Ostapenko turned 20 on the day of the women's semifinals, when she ousted fellow birthday buddy Timea Bacsinszky in three sets to advance to her first Grand Slam - and fourth overall - final. 

Never before past the third round at a major tournament, Ostapenko previously rallied from a set down to defeat Louisa Chirico (first round), Samantha Stosur (fourth round) and Caroline Wozniacki (quarterfinals) on her run to the championship. 

Despite leaving Paris on top of the world, Ostapenko - who rose to a career-high ranking of No.12 and No.4 in the Porsche Race to Singapore as a result - recognizes her upside and wants to build on her breakthrough.

"I'm really happy [with the win], but I still have to improve some things and to get better as player," she said after raising the trophy in Paris. "And so I will work hard to climb the ranking and to maybe win some more titles.

"It was my dream and now it came true. I think if I have really good day and I'm hitting really well, I think anything is possible."

Final Results for May's WTA Breakthrough Performance of the Month

1. Jelena Ostapenko (60%)
2. Veronica Cepede Royg (33%)
3. Ons Jabeur (5%)
4. Caroline Garcia (2%)

2017 Breakthrough Performance of the Month Winners

January: CoCo Vandeweghe
February: Kristina Mladenovic
March: Risa Ozaki

April: Daria Kasatkina


How it works:

Finalists are selected by wtatennis.com
Winner is then determined by a fan vote on wtatennis.com