KATIE BOULTER continued her stellar start to 2024 with a dominant victory over Brazil’s Beatriz Haddad Maia to reach the fourth round of the Miami Open.

The British number one was barely troubled by the 11th seed, whom she beat last month on her way to the San Diego title, as she wrapped up a 6-2 6-3 victory in 90 minutes.

The 27-year-old will meet WTA Tour veteran Victoria Azarenka in the fourth round.

Meanwhile, world number two Aryna Sabalenka went down 6-4 1-6 6-1 to Anhelina Kalinina in what was her second match following the death of her former boyfriend, Konstantin Koltsov.

Koltsov died at the age of 42 on Monday in what police described as an “apparent suicide” in Miami.

Sixth seed Ons Jabeur was upset 6-1 4-6 6-3 by world number 65, while ninth seed Jelena Ostapenko was bundled out in straight sets by Anna Kalinskaya.

Japan’s Naomi Osaka picked up the second victory over a top 20 player in her past four matches, eclipsing world number 17 Elina Svitolina 6-2 7-6 (5).

And world number one Iga Swiatek marked the 100th WTA 1000 match of her career with a straight sets win over Italy’s Camila Giorgi.

Meanwhile, Andy Murray picked up his best win of the year so far with a straight-sets victory over Tomas Martin Etcheverry.

Murray swept past the Argentinian, ranked 30 in the world, 7-6 (0) 6-3 in a rain-interrupted match to reach the third round.

The 36-year-old Scot gained a measure of revenge for his defeat by the same player in the first round of the Australian Open in January.

Murray will face Czech youngster Tomas Machac, who beat Russian world number six Andrey Rublev, in the next round.

British number one Cameron Norrie will meet third seed Daniil Medvedev in the round of 64 after escaping Italy’s Flavio Cobolli 7-5 6-7 (4) 6-2 in two hours and 34 minutes.

Nicolas Jarry ended fellow Briton Jack Draper’s challenge, however.

Jarry, the world number 23 from Chile, beat 22-year-old Draper 7-6 (5) 4-6 7-6 (2).

Compatriot Dan Evans was also bundled out in a gruelling 7-6 (3) 3-6 7-6 (7) loss to American Christopher Eubanks.