Over her career, Cetkovská defeated top-ten players Marion Bartoli, Elena Dementieva, Angelique Kerber, Li Na, Agnieszka Radwańska, Caroline Wozniacki, and Vera Zvonareva.

Her father Petr works at a pro shop in a local tennis club, while her mother Alena is a nurse.

A year later, she had contracted glandular fever, further hampering her tennis career prospects and the third obstacle had come when she broke her foot playing the junior doubles final at the Australian Open.

In 2002, when she competed in her first WTA Tour qualifying at Palermo, Cetkovská won two singles and two doubles titles on the ITF Circuit.

Cetkovská began her season by playing qualifying at the Hobart International where she lost in the second round to third seed Ashley Harkleroad.

[5] At the French Open, Cetkovská reached the fourth round, only to be beaten by eventual champion Ana Ivanovic without winning a game.

As the 13th seed for qualifying, she advanced to the main draw defeating wildcard Michaela Hončová and Anastasia Rodionova.

Cetkovská ended up losing in the quarterfinals to sixth seed and eventual finalist Angelique Kerber.

[8] Next week, Cetkovská played at the Miami Masters where she lost in the final round of qualifying to 20th seed Estrella Cabeza Candela.

Cetkovská qualified for the Madrid Open beating Monica Puig and Mona Barthel.

[15] At the Miami Open, Cetkovská was defeated in the first round by wildcard Paula Badosa Gibert.

[18] Cetkovská qualified for Wimbledon defeating Renata Voráčová, 15th seed Donna Vekić, and Elise Mertens.

[19] Two weeks later, Cetkovská competed at the ITS Cup in her home country where she was the third seed and the defending champion.

She advanced to the final with wins over Rebecca Šramková, Irina Ramialison, sixth seed Akgul Amanmuradova, and Ekaterina Alexandrova.

Cetkovská ended up losing in the final to top seed and compatriot Barbora Krejčíková.

Playing as a wildcard, she lost in the semifinals to seventh seed María Teresa Torró Flor.

[23] In the second round, Cetkovská had a huge win, upsetting fourth seed and last year finalist, Caroline Wozniacki.

[29] Cetkovská was going to begin her clay-court season at the Charleston Open, but she withdrew from the tournament due to a right thigh injury.

Due to having a low ranking (136), she played qualifying in order to make it into the main draw.