Marcos Giron is an American professional tennis player born on July 24, 1993, in Thousand Oaks, California. He achieved a career-high singles ranking of world No. 37 on August 5, 2024. Giron turned professional in 2014 and has since secured one ATP singles title at the 2024 Hall of Fame Open.
At the 2025 Australian Open, Giron reached the third round for the first time, where he faced defending champion Jannik Sinner. Sinner won the match 6-3, 6-4, 6-2, with Giron struggling due to a foot injury.
In recent years, Giron has demonstrated significant progress, including multiple top-10 victories and consistent performances on various surfaces. His journey reflects a blend of resilience and skill, marking him as a notable figure in American tennis.