Learner Tien
Playing now
Result today
Up next today
Playing next
Match log
2026
2025
Learner Tien
Learner Tien arrived all at once at the 2025 Australian Open, a 19-year-old qualifier who outlasted fifth seed Daniil Medvedev over five sets and nearly five hours, winning a deciding 10-point tiebreak, then went on to the fourth round. The left-hander from Irvine, California takes the ball early and redirects pace rather than supplying it, a game with more patience than a teenager should own. His parents fled Vietnam as refugees; his mother, a math teacher, named him Learner, and his sister, for their lawyer father, is Justice.
Michael Chang took over as coach in July 2025 and the climb steepened. Tien won his first tour title in Metz that autumn past Cameron Norrie, added the Next Gen ATP Finals crown, and in May 2026 beat Mariano Navone for the Geneva title, the youngest American man to win on European clay since Chang himself at the 1989 French Open. By late June 2026 he had reached a career-high No. 17, born in December 2005 and already third among American men.