Petra Martić was born in Split, Croatia, SFR Yugoslavia to Nenad (father) and Sandra (mother).

She played her first WTA Tour main draw match as a wildcard at Miami Open 2007, losing in first round to Russian Alina Jidkova.

Martić started the 2012 season losing in the first rounds of several tournaments including the Australian Open, Doha, and Dubai.

This marked Martić's first ever win against a top 10 player, and the first time she advanced beyond the second round at any Grand Slam tournament.

She drew grass court phenom Sabine Lisicki in the first round of Wimbledon, losing 6–4, 6–2, while at the US Open she was pitted against defending champion and world No.

She recorded her first Grand Slam main-draw win since Wimbledon 2013 by defeating Kateryna Bondarenko in straight sets.

She then recorded straight-set wins over Denisa Allertová and Zarina Diyas to advance to her second consecutive major fourth-round appearance (third overall and first outside the French Open), where she was defeated by Magdaléna Rybáriková.

Continuing her success from 2017, Martić made it to the fourth round of the 2018 Australian Open (her third consecutive major fourth round, and first ever on hardcourts), losing to Elise Mertens in straight sets, and reached her first quarterfinal at a Premier Mandatory event in Indian Wells (defeating world No.

6 and reigning French Open champion, Jeļena Ostapenko, en route) before losing to Simona Halep in three sets.

At her next event, the İstanbul Cup, she reached her third career final, coming back from a set down in her first two matches as well as defeating former top-10 player Kristina Mladenovic in the quarterfinals.

She then recorded another come-from-behind victory, defeating Markéta Vondroušová in the final to win her first career WTA singles title.

[10] Martić then made it to the quarterfinals of the Madrid Open, defeating two-time Grand Slam champion and former world No.

Seeded 31st at the French Open, Martić defeated Ons Jabeur and Mladenovic to reach the third round where she upset world No.

She then defeated six-time Grand Slam quarterfinalist Kaia Kanepi in the fourth round to reach her first ever major quarterfinal, becoming the first Croatian female tennis player to do so since Iva Majoli in 1998.

Seeded 24th at Wimbledon, she equaled her best result at this tournament by reaching the fourth round for the second time (recording three set wins over Jennifer Brady, Anastasia Potapova, and Australian Open semifinalist Danielle Collins) where she lost to Svitolina.

However, Martić didn't find much success during the beginning of the summer hardcourt season, losing her opening-round matches in Toronto and Cincinnati, but rebounded at the US Open, where she was seeded 22nd.

11, Anastasija Sevastova (who was carrying a streak of three straight US Open quarterfinal appearances), to reach the second week of a major for the third consecutive time.

In Zhengzhou, she reached her first Premier-level final, after beating Aryna Sabalenka in the quarterfinals and Mladenovic in the semifinals to face Plíšková for the first time since upsetting her at the French Open.

Martić's strong performances all season helped qualify her to the WTA Elite Trophy for the first time in her career.

Seeded fifth and drawn into the Orchid Group, she beat wildcard Zheng Saisai, but lost to Madison Keys in straight sets.

After the resumption of the WTA Tour in August, Martić reached her second semifinal of the year at the Palermo Ladies Open, before falling to Anett Kontaveit in straight sets.

Martić did not make it past the first round in nine other tournaments, including Dubai, Madrid, Roland Garros, Montreal and Cincinnati.

However, she managed to reach her first semifinal of a WTA 1000 tournament in her career at the Italian Open defeating Jessica Pegula.

After two consecutive first-round losses, Martić scored her first WTA Tour match win of the season against world No.

She bounced back at the Indian Wells Open, when she scored four consecutive victories (three against top-30 players) to reach the quarterfinals where she lost to Simona Halep.

[14][15] At the US Open, Martić reached the third round by defeating fourth seed Paula Badosa in three sets, before losing to Victoria Azarenka.

As a result, she continually disrupts baseline rallies, creating opportunities to hit winners, or forcing opponents to commit errors.

Her serve is powerful, being recorded as high as 120 mph (190 km/h), and is also reliable, allowing her to hit many aces throughout a match, whilst minimising double faults.

She is capable of extending rallies, acting more like a counterpuncher, to draw unforced errors out of highly aggressive players, possessing a complete defensive game.

Only main-draw results in WTA Tour, Grand Slam tournaments, Fed Cup/Billie Jean King Cup and Olympic Games are included in win–loss records.