Katie Boulter, the British number one, was defeated in the second round of the US Open after losing 58 minutes to Karolina Muchova. The match saw Boulter win just one game, marking a significant setback in her tournament. Muchova, the Czech player, dominated the match with consistent play and precision. Boulter’s early exit highlights the challenges faced by British tennis players in major tournaments. The result underscores the high level of competition at the US Open, where top-ranked players often face tough challenges.