Katie Swan became the first British singles player to reach the second round at this year's Wimbledon, but Katie Boulter fell to a disappointing defeat by a qualifier on day two.
Ten Britons lost on the opening day of their home major - the most at SW19 since daily records began in 2000.
But Swan, who considered retiring from tennis in 2024 because of a persistent back injury, avoided the same fate in her first Grand Slam appearance for three years with a 6-4 6-4 victory over Romania's Irina-Camelia Begu.
The 27-year-old threw herself to the ground as she celebrated the win - her first in the main draw of a major since she beat the same opponent at Wimbledon in 2018.
In an abysmal opening day for home hopes, 10 British players - including Cameron Norrie, the highest ranked Briton - quickly toppled out of the tournament.