British number one Katie Boulter insists successive first-round defeats have not dented her confidence ahead of Wimbledon following an early exit at Eastbourne.

Boulter was flying high after claiming her maiden WTA tour title at Nottingham on June 18 and expressed ambitions of one day becoming the world’s top-ranked player in an interview published on Monday.

But on Tuesday she failed to take her chances and was second best in a 6-4 7-5 defeat to world number 30 Petra Martic in the Rothesay International.

The 26-year-old’s loss in two hours and five minutes at a blustery Devonshire Park followed last week’s premature departure from the Rothesay Classic in Birmingham to limit her preparations for SW19.

“It wasn’t bad tennis – I’m playing someone ranked 30 in the world, I’m having a go at her,” said Boulter, who was initially drawn to face world number 10 Barbora Krejcikova before the withdrawal of reigning Wimbledon champion Elena Rybakina led to a reshuffle.

“Of course it was tough conditions and we could have that at any tournament, you could have that at Wimbledon, and I have to be ready for it and try and play the best I can on the day.

“Ultimately her experience showed today and she played better in the biggest moments.

“I feel like I’m playing some really good tennis. I’ve practised unbelievably well every single day this week. I’ve played seven matches going into the grass, I’m very happy with where I’m at.

“I don’t think I’ve lost any confidence this last couple of weeks just because I lost to higher-ranked players. I really don’t feel that at all.”

Heather Watson suffered elimination shortly after Boulter following defeat to Italian Camila Giorgi.

Watson, one of two lucky losers to benefit from the withdrawals of reigning champion Petra Kvitova (fatigue) and Anastasia Potapova (right shoulder), lost 6-3 6-4.

“I was prepared because yesterday I heard Kvitova wasn’t going to play,” said Watson. “I was very happy that I had another opportunity, but she was too good today.”

In the men’s draw, Liam Broady won the battle of the Britons by beating fellow Wimbledon wildcard Jan Choinski in straight sets.

The British number five, ranked 147 in the world, 20 places above Choinski, eased through 6-3 6-4 after breaking serve at the first opportunity in each set.

German-born Choinski briefly threatened a comeback following a break of his own in the sixth game of the second, but Broady immediately hit back before capitalising on his third match point.

The 29-year-old from Stockport will face Mikael Ymer of Sweden in the next round after he defeated Dutch ninth seed Botic van de Zandschulp 3-6 6-4 6-2.

Elsewhere, last year’s runner-up Jelena Ostapenko set up a last-16 clash with Britain’s Harriet Dart.

The Birmingham champion defeated lucky loser Barbora Strycova, who had replaced the absent Kvitova, 6-4 6-3.

World number seven Coco Gauff will play Britain’s Jodie Burrage in round two after she cruised past fellow American Bernarda Pera 6-3 6-2.

Also on Tuesday, former Wimbledon and US Open finalist Ons Jabeur overcame Italy’s Jasmine Paolini 6-3 6-2, second seed Caroline Garcia beat American Madison Brengle 6-1 7-5 and Beatriz Haddad Maia battled back to triumph 3-6 6-3 7-6 (3) against Marie Bouzkova.