Who’s That Girl? Decoding the Story of Nick Kyrgios’ Partner, Costeen Hatzi

Professional tennis player Nick Kyrgios has been dating his girlfriend, Costeen Hatzi, since December 2021.

The athlete, known for his dramatic on-court antics, is one of the stars of Netflix’s tennis docuseries, Break Point, which documents his 2022 tennis season and includes a look at the early days of his relationship with Hatzi.

During a confessional, Hatzi, who is a social media influencer, admitted she wasn’t a tennis fan before meeting Kyrgios. “I never really watched a tennis game in my life, so yeah, this is all new for me,” she said before defending her boyfriend’s “bad boy” reputation. “He’s not as crazy as everyone thinks.”

So, who is Nick Kyrgios’ girlfriend? Here’s everything to know about Costeen Hatzi and her relationship with the tennis player.

She lives in Australia

Hatzi lives in Sydney, Australia with Kyrgios. She graduated in May 2021 from Australian Catholic University with a bachelor of psychological sciences. “No idea how we got through it but we did – Here’s to the next chapter,” she wrote on Instagram at the time.

In 2022, she and Kyrgios moved into an apartment together in Sydney. Hatzi frequently posts videos of their living space — including their renovations and interior decorations.

She says meeting Kyrgios was love at first sight

In a January 2023 ESPN profile of Kyrgios, Hatzi recounted how the two first met: In late 2021, Hatzi was selling a mirror on Instagram, and Kyrgios reached out while looking for one to purchase. They began dating soon after he showed up at her door to buy the mirror, and Hatzi told the outlet it was love at first sight.

Despite Hatzi’s limited knowledge of tennis, Kyrgios’ manager Daniel Horsfall told ESPN that her presence on tour had a positive impact on his game.

“I’ve seen him in previous relationships, and they perhaps were taking him in the other direction,” Duguid said. “[Hatzi] lifts him up and gives him motivation and inspiration, and she’s just a great partner to him.”

The tennis pro has also praised Hatzi’s support, telling reporters at the Citi Open in Washington, D.C. that “just being at peace” with life helps his game. “You know, I’m fortunate enough to be in a really healthy relationship that’s loving, she’s supports me, and we just have fun,” Kyrgios said of his girlfriend.

She says Kyrgios is “not as crazy as everyone thinks”

Kyrgios is well-known for his infamous on-court behavior, previously making headlines after spitting on a fan at Wimbledon and smashing his racket during the Australian Open, among other transgressions.

Hatzi spoke about Kyrgios’ on-court behavior in Break Point, telling the cameras Kyrgios is “not as crazy as everyone thinks.”

However, the series did not address the charge of common assault Kyrgios is facing, stemming from an alleged incident with a former girlfriend in 2021.

After the allegations came to light in July 2022 during Wimbledon, Kyrgios told reporters it was hard to “focus,” though he wouldn’t comment further. “Obviously I have a lot of thoughts, a lot of things I want to say, kind of my side about it. Obviously I’ve been advised by my lawyers that I’m unable to say anything at this time,” he said, according to The Guardian.

On Feb. 3, 2023, Kyrgios went to court in Australia and plead guilty to assaulting ex-Chiara Passari. However, Magistrate Beth Campbell chose not to record a conviction, stating that the tennis star had no criminal record and that the incident was not premeditated.

“I respect today’s ruling and I’m grateful to the court for dismissing the charges without conviction,” Kyrgios later wrote on Instagram. “I was not in a good place when this happened and I reacted to a difficult situation in a way I deeply regret.”