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

Have a look at the nominees for February’s Breakthrough of the Month and cast your vote before Thursday at 11:59pm ET! The winner will be announced Friday, March 10.

February 2017 WTA Breakthrough of the Month Finalists:

Elina Svitolina: Svitolina surged up the rankings and into the upper echelons of the women’s game in February, debuting in the Top 10 and winning the biggest title of her career at the Dubai Duty Free Tennis Championships. Along the way, she also won the Taiwan Open and amassed a 13-match winning streak, one that’s yet to be broken heading into the BNP Paribas Open.

Kristina Mladenovic: The Frenchwoman took home her first career title on one of the game’s biggest stages, surviving Yulia Putintseva to win a Premier title at the St. Petersburg Ladies Trophy. Mladenovic capped off the month with a win over Karolina Pliskova and another run to a WTA final at the Abierto Mexicano Telcel.

CiCi Bellis: The young American made waves in Dubai, stunning former World No.2 Agnieszka Radwanska to become the youngest quarterfinalist at the Premier 5 event since Lina Krasnoroutskaya in 2001.

Ashleigh Barty: Barty continued her impressive comeback by winning the singles and doubles titles at the Ayla WTA Malaysian Open; the former was her first career singles title and helped her make her Top 100 debut on Monday’s rankings.

2017 Winners:

January: CoCo Vandeweghe

How it works:

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