Johanna Konta, the Eastbourne-based Brit, registered her first ever win over a top 10 player to topple Russian Ekaterina Makarova in straight sets 6-2 6-4.
And the British #3 will be encouraged by her victory to penetrate her section of the draw, which sees her projected last 16 in Garbine Muguruza who takes on Qualifier Polona Hercog.
The Spaniard is there for the taking for Konta, who impressed on grass courts prior to playing in her home tournament.
Muguruza struggles on grass because it ruins her movement and timing, opening up the draw for Konta.
The popular Brit, who on Sunday evening was awarded a Wimbledon wildcard, looked comfortable on Centre Court and was never in trouble against world #8 sent Makarova in her adopted town.
Australian-born Konta admitted, “On paper it looks like my best-ever win.
“I knew she wouldn’t give me any easy points so I had to play some of my best tennis out there, and I managed to do that.
“I tried to just go for every ball and to make sure I ran as
many balls down as possible as I knew she wasn’t going to give it to me.”