August was defined by three breakthrough players who brought some impressive performances on and off the court. Which one soared the highest?

Have a look at the nominees for August Breakthrough Performance of the Month and cast your vote before Thursday at 11:59pm ET! The winner will be announced Friday, September 16.

August 2016 WTA Breakthrough Performance of the Month Finalists:

Karolina Pliskova: After losing in the first or second round in 14 of her first 17 major tournaments, Pliskova broke through in a big way at the US Open. In her first Grand Slam second week, she saved a match point to defeat No.6 seed Venus Williams in a final set tie-break, and backed up that win by becoming the fourth woman to beat both Venus and top seed Serena Williams at the same major tournament. The win took her into her first Grand Slam final, where she fell in three dramatic sets to Angelique Kerber.

Anastasija Sevastova: The Latvian is playing better than ever in her second career. Coming back from an 18-month retirement at the start of 2015, Sevastova stunned No.3 seed Garbiñe Muguruza under the lights of Arthur Ashe Stadium and knocked out Johanna Konta to reach the quarterfinals for her best Grand Slam finish.

Ana Konjuh: Three years after winning the girl’s singles title at the US Open, 18-year-old Ana Konjuh was the young starlet of the 2016 tournament. Upsetting No.4 seed Agnieszka Radwanska, Konjuh avenged a heartbreaking loss at Wimbledon – where she injured her ankle after having three match points – and enjoyed her best-ever Grand Slam result, reaching the last eight.

2016 Winners:

January: Zhang Shuai
February: Jelena Ostapenko
March: Nicole Gibbs
April: Cagla Buyukakcay
May: Kiki Bertens
June: Elena Vesnina
July: Kristina Kucova

How it works:

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