Johanna Konta continued her impressive start to the Australian Open with a second round win over Naomi Osaka, but there were exits for compatriots Heather Watson, Kyle Edmund and Jamie Murray.
British number one Konta joined Andy Murray and Dan Evans in the third round with a confident 6-4 6-2 victory over 19-year-old Osaka of Japan.
Konta, who is enjoying a good run of form of late having also won the Sydney International title last weekend, looked confident on court and dominated the second set to secure her tenth win of 2017.
The 25-year-old said: “What she does well is she also takes pace off the ball quite well.
“You don't quite know when she's going to be hitting it big and when she's looking to stay in the point and more work the point.
“I think I did a good job at keeping pressure on her. From my side, I don't believe she actually did much wrong. I felt the few opportunities that I got, I was quite quick to take them, so I think I made it difficult for her.”
World number nine Konta actually had to save a break of serve in the eighth game with her opponent missing on her forehand before the Brit fired down two aces to hold.
She then followed that up immediately with a break to love before serving out the opening set.
The momentum continued with Konta in the second and she duly wrapped up the win to set up an enticing third-round clash with former world number one and 17th seed Caroline Wozniacki.
"It will be an incredibly tough one,” said Konta, who reached the semi-finals in Melbourne last year.
“Every round so far has been. I think my first round and also here, they were incredibly competent opponents.
"But I'm looking forward to the challenge. I'm looking forward to trying. I'm looking forward to being out on court, competing, and ultimately I'm just trying to make my stay here in Melbourne as long as possible."
Elsewhere there was heartbreak for Watson as she failed to capitalise on five match points before being knocked out by American qualifier Jennifer Brady 2-6 7-6 10-8.
Watson, ranked 35 places higher than her world number 116 opponent, had eased through the first set and was on course for a straight sets win only to be broken when serving at 5-4.
Brady then levelled on a tie-break before a tight third set lasting 86 minutes saw opportunities come and go for Watson but Brady eventually held her nerve to progress.
And British men’s number two Edmund came up against a strong opponent in Spain’s Pablo Carreno Busta, losing 6-2 6-4 6-2.
The 22-year-old was guilty of making too many errors himself – he recorded six double faults and failed to take any of his six break-point opportunities.
But the Spaniard was equally impressive on his serve, breaking at crucial points in the one hour and 46 minute victory. Meanwhile in the doubles, there was a shock early exit for Jamie Murray as he and men's doubles partner Bruno Soares were knocked out in the first round. The duo were the defending champions and second seeds but lost to Sam Querrey and Donald Young 6-3 7-6 in one hour and 12 minutes. Querrey also plays Murray's younger brother Andy in the men's singles third round on Friday. Sportsbeat 2017