Boulter forgets new tiebreak rule in Melbourne

Boulter forgets new tiebreak rule in Melbourne

The Australian Open introduced the first-to-10 tie-break in deciding sets for this year's slam and Katie Boulter was the first to win.

The Brit has become the first main-draw competitor to win a super tie-break at the Australian Open, defeating 2015 semi-finalist Ekaterina Makarova on Monday.

The 22-year-old, fresh from her exploits in the Hopman Cup with Cameron Norrie, remained ice cool in the heat as she beat the former world No 8 6-0 4-6 7-6 (6) in just under two-and-a-half hours.

In the tiebreak, Boulter quickly raced to a 5-0 lead over Makarova and charged towards the net when she went ahead 7-4, thinking she had advanced. After the 10:6, the British woman was allowed to celebrate her victory. She's got a lot more experience than me but I came through qualifying so that's something to be positive about.

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Makarova fought back but coudn't catch the Briton after her slow start and Boulter recorded an epic win on her debut.

In fact, she thought it came three points early.

The 26-year-old has found herself stuck in the tennis doldrums and admitted she was so tense on court that she felt faint and dizzy and had to call the doctor.

The 22-year-old, who came through three matches of qualifying for the first time at a slam, said: "It was always going to be a hard match, especially on such a big court".