Katie Boulter has set her sights on pushing further up the rankings after winning the biggest title of her career.

The British number one defeated five top-40 players to win the San Diego Open, bringing her a first WTA 500 trophy and elevating her ranking to 27.

With Cameron Norrie slipping to 28, it means Boulter is the highest-ranked British singles player of either gender heading into the BNP Paribas Open in Indian Wells, which begins on Wednesday.

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The same week a year ago, Boulter was ranked outside the world’s top 150, and she does not have many points to defend until the grass-court tournament in Nottingham in June, where last year she picked up her first WTA title.

“I feel like I’ve started the year very well and I’ve given myself the best opportunity to set myself up for the rest of the year,” said 27-year-old Boulter.

“I’ve got a free swing, I don’t really have too much pressure. I’m just here enjoying myself and working as hard as I possibly can with a great team. You never know what could happen so I’m looking forward to the rest of the year.”

The weekend was made even more special for Boulter by the success of boyfriend Alex De Minaur, who successfully defended his title in Acapulco on Saturday before catching an early morning flight to cheer on the British star.

They join the likes of former couples Jimmy Connors and Chris Evert and Lleyton Hewitt and Kim Clijsters in winning titles on the same weekend, and Boulter said: “I think that is very cool.

“I had no idea other people had done it. To share something with my other half is going to be something that we won’t forget.”

While the two titles both earned their recipients 500 ranking points, De Minaur took home around £325,000 and Boulter just £112,000, highlighting the continuing disparity between the ATP and WTA Tour away from the biggest joint events.

Boulter has mixed feelings, saying: “I’m obviously very happy with my first WTA 500 title, not too many players can say that they’ve won a 500 so I feel very special.

“Regarding the prize money, I feel like there’s a lot of equality in our sport in the biggest events. I really hope that the WTA can continue to help bridge the gap between the other events.”

There is parity in Indian Wells, where the tours come together at a big event for the first time since the Australian Open.

Boulter’s elevation to the top 30 comes too late to earn her a seeding and she will be back in action on Wednesday against dangerous Italian Camila Giorgi.

If she can maintain or improve her ranking through to the French Open and Wimbledon, she will earn herself a seeding, meaning she would not face a player in the top 32 until at least the third round.

“It’s definitely an aim of mine,” said Boulter. “I want to make sure that I can get as close to a seeding as possible. At the moment I’m in but it takes time to build more ranking points and to get myself to that place.

“Every single place in the ranking counts and I’ve just got to do my best because obviously it makes a difference as to who you play in the tournaments.”

Boulter is joined in the Indian Wells draw by Emma Raducanu, who has been given a wild card and will take on a qualifier in the first round.

Raducanu enjoyed one of her best weeks in the Californian desert last year, defying the wrist problems that subsequently forced her to go under the knife to reach the fourth round.

Norrie has a bye in the men’s event as the 28th seed while Andy Murray plays a qualifier, Jack Draper meets Christopher O’Connell and Dan Evans plays Roman Safiullin.

Rafael Nadal returns to the tour for the first time since suffering a muscle injury in Brisbane in January and will take on fellow veteran Milos Raonic, while Novak Djokovic makes his first appearance in Indian Wells for five years following the relaxation of Covid-19 restrictions.

British number one Katie Boulter thanked boyfriend Alex de Minaur for racing over to California to watch her win a first WTA 500 tournament after his own success at the Mexican Open.

The 27-year-old came from behind to claim the San Diego Open title with a 5-7 6-2 6-2 win over Ukrainian Marta Kostyuk and earn a second career title.

Boulter’s victory was watched by De Minaur, who defended his Mexican Open title in Acapulco on Saturday before scheduling an early-morning flight to support her on Sunday.

“I want to say a small special thank you to my boyfriend,” Boulter said post-match.

“He finished last night at midnight and I really want to embarrass him. He got a 4.15 taxi this morning and six o’clock flight to be here today, so I do appreciate it.”

After an even start to the match, Kostyuk began to get the better of Boulter and surged into a 5-2 lead.

Boulter fought back to level at 5-5 but the sixth-seeded Ukrainian regained the momentum to wrap up the first set 7-5.

Boulter then found her groove in the second, dominating on her first serve to clinch the set 6-2 and force a deciding third set.

The Briton continued her ascendancy into the third, claiming the first break point of the set en route to opening up a 3-1 advantage.

Boulter broke again in the seventh game and hit her first two aces of the match in the next to close out the victory in two hours and 13 minutes.

The San Diego win is her second WTA title, adding to a maiden championship on grass in Nottingham last summer and Boulter reflected on a “special” week in California.

“This week has been very, very special for so many different reasons,” she said post-match.

“This one is pretty amazing, I’ve worked very hard for it, I played some incredible tennis all week.

“Today was a complete battle, with myself as well because I was a little bit nervous. But I managed to get over the line and that I’m very proud of.

“A lot of it was about me staying as tough as I possibly could mentally and I managed to keep my cool and actually kind of went within myself and calmed myself down a lot.

“I think that really helped me and then I started to relax and play through shots a little bit more.”

Boulter has had a flying start to the 2024 season and the victory over Kostyuk sees her break into the top 30 for the first time, now ranked 27th.

British number one Katie Boulter has claimed her first WTA 500 tournament victory with a 5-7 6-2 6-2 win over Ukrainian Marta Kostyuk in the final of the San Diego Open.

The 27-year-old from Leicester was watched by boyfriend Alex De Minaur, who scheduled an early-morning flight after retaining his title in Acapulco.

After an even start between the two, the sixth seeded Ukrainian began to get the better of Boulter, stringing multiple games together and rapidly closing in on the opening set.

Boulter fought back to even the set at 5-5, but Kostyuk regained the momentum to wrap up the first set 7-5.

Boulter then found her groove in the second, dominating on her first serve to clinch the set 6-2 and force a deciding third set.

The Briton continued her ascendancy into the third, claiming the first break point of the set en route to opening up a 3-1 advantage.

Boulter broke again in the seventh game and stormed home from there to close out the victory in two hours and 13 minutes.

Both women picked up their first WTA Tour titles last year in breakout 2023 seasons.

Boulter claimed her maiden championship on grass in Nottingham last summer, while Kostyuk found victory in Austin.

Boulter has had a flying start to the 2024 season and the victory over Kostyuk guarantees she will break into the top 30 for the first time.

Katie Boulter will play in her first WTA-500 final after she beat American Emma Navarro in straight sets at the San Diego Open.

It took just over an hour for Boulter who won the first set 6-3 and dominated the second 6-1 against the third seed.

The 27-year-old from Leicester dominated on her serve, winning more than 87 per cent of first serve points and allowed just two break points opportunities against her serve, saving both.

Rain stopped play early in the second set, but the delay did nothing to stop Boulter’s momentum as she produced an almost perfect set to secure victory.

Boulter will climb to her career-high WTA ranking after the win as she looks to win her first WTA-500 title in what will be the biggest game of her career so far.