America, Nadal, Medvedev, Next Gen Finals: Everything you always wanted to know about Learner Tien (but never had the time to find out): updated after Australian Open 2025
Learner Tien is the youngest man to reach Australian Open fourth round since Rafael Nadal in 2005. Learn more about the young American here
Learner Tien, Australian Open, 2025 Vincent Thian/AP/SIPA
Who is Learner tien?
Leaner Tien is a tennis professional from the United States of America, playing on the ATP Tour.
How old is Learner tien?
Tien was born in Irvine, California, on December 2, 2005, which makes him 19 years old as of February 8, 2025.
What is Learner Tien’s best grand Slam performance?
He made his main draw debut at the Grand Slams in 2022, playing in the US Open first round where he lost to Serbia’s Miomir Kecmanovic. Since then, he has made two more appearances in New York, failing to win a main-draw match.
In 2025, the American produced a run to the fourth round of the Australian Open to record his best Grand Slam performance as of February 2025.
What did learner tien do at the 2025 australian open?
Tien entered the 2025 Australian Open main draw as a qualifier and opened his campaign with a win against Camilo Ugo Carabelli (4-6, 7-6 (3), 6-3, 5-7, 6-4).
He then caused a huge upset in the second round by defeating previous year’s runner-up and No 5 seed Daniil Medvedev. The match saw three tiebreakers, culminating in Tien prevailing 6-3, 7-6 (4), 6-7 (8), 1-6, 7-6 (10-6) after four hours, 48 minutes.
In the third round, he defeated France’s Corentin Moutet (7-6 (10), 6-3, 6-3) to make more history, becoming the youngest man to qualify for the fourth round at the Australian since an 18-year-old Rafael Nadal did the same in 2005.
He, however, lost to Italy’s Lorenzo Sonego (6-3, 6-2, 3-6, 6-1) in the fight for a place in the quarter-finals.
did learner tien play at the 2024 Next Gen ATP Finals?
Yes, Tien qualified for the 2024 Next Gen ATP Finals as No 3 seed and reached the semi-finals by overcoming Czechia’s Jakub Mensik (4-3 (6), 4-3 (3), 2-4, 2-4, 4-3 (10-8)) and top seed Arthur Fils (4-2, 4-2, 3-4 (4), 4-3 (5)) in Blue Group.
He faced fellow American Alex Michelsen in the semis and succeeded in a five-set battle (2-4, 4-2, 1-4, 4-0, 4-1) to set up the title clash with Brazil’s Joao Fonseca, whom he couldn’t beat in the round-robin (4-0, 4-0, 1-4, 4-2). Tien couldn’t crack Fonseca again as the Brazilian lifted the Next Gen ATP Finals trophy by winning the final in four sets (2-4, 4-3 (8), 4-0, 4-2).
Who is learner tien’s coach?
Tien’s coach is Eric Diaz, who has also trained Alex Michelsen.
When did learner tien turn pro?
Tien began playing tennis professionally in 2023. For his first ATP Tour win, he defeated Aussie Tristan Schoolkate in the 2024 Winston-Salem first round. Further, he upset No 9 seed Fabian Marozsan and Brazil’s Thiago Seyboth Wild to make his first tour-level quarter-final, where Spain’s Pablo Carreno Busta stopped him.
Was learner tien a good junior?
The American peaked at world No 4 in the juniors rankings. In 2023, he played in the Australian Open and US Open boys’ singles finals, losing to Belgian Alexander Blockx and Joao Fonseca, respectively. The same year, he made the semi-finals at Roland Garros and the quarter-finals at Wimbledon (also in 2022).
In doubles, he took the Australian Open boys’ doubles crown home in 2023 alongside compatriot Cooper Williams. The all-American pair defeated the duo of Blockx and Fonseca in the summit clash.
Tien also triumphed at the USTA Boys’ 18s National Hard Court Championships in 2022 and 2023.
Who are leaner tien’s parents?
Tien was born to Vietnamese parents. His father is Khuong Dan Tien, who is a real estate agent, and his mother is Huyen Tien, a mathematics teacher. He also has a sister named Justice.
where did learner tien go to college?
He attended the University of Southern California in Los Angeles, California.
What is learner tien’s career-high ranking?
Tien reached his career-high ranking of world No 80 on January 27, 2025. For his latest ranking updates, visit his ATP Tour profile.
what is learner tien’s height?
As per his ATP Tour profile, he’s 5 ft 11 in or 1.80 m tall.
how much prize money has learner tien earned?
As of February 8, 2025, he has won $987,532 in prize money.
Is learner tien active on social media?
Yes, you can follow him on Instagram.
