| Learner Tien | |
| Residence: | Irvine, California, United States |
| Birth Date: | 2 December 2005 |
| Turnedpro: | 2023 |
| Plays: | Left-handed (two-handed backhand)[1] |
| College: | University of Southern California |
| Coach: | Eric Diaz |
| Careerprizemoney: | US$ 222,014 |
| Singlesrecord: | (at ATP Tour level, Grand Slam level, and in Davis Cup) |
| Singlestitles: | 0 |
| Highestsinglesranking: | No. 231 (19 August 2024) |
| Currentsinglesranking: | No. 231 (19 August 2024) |
| Usopenresult: | 1R (2022, 2023, 2024) |
| Doublesrecord: | (at ATP Tour level, Grand Slam level, and in Davis Cup) |
| Doublestitles: | 0 |
| Highestdoublesranking: | No. 754 (20 November 2023) |
| Currentdoublesranking: | No. 934 (12 August 2024) |
| Australianopendoublesjuniorresult: | W (2023) |
| Frenchopendoublesjuniorresult: | QF (2023) |
| Wimbledondoublesjuniorresult: | 2R (2022) |
| Usopendoublesjuniorresult: | 2R (2022) |
| Updated: | 20 August 2024 |
Learner Tien (born December 2, 2005) is an American tennis player. He has a career-high ATP singles ranking of world No. 231 achieved on 19 August 2024. He also has a career-high doubles ranking of No. 754 achieved on 20 November 2023.
Tien was born in Irvine, California to Vietnamese parents. His first name, Learner, is inspired by his mother's profession - a math teacher.[2] His sister is named Justice after his father's profession – an attorney.
Tien started playing tennis as an infant, and won his first tournament at the Racquet Club of Irvine at the age of 5.[3]
Tien had a very successful career as a junior, compiling a 76-23 win-loss record and reaching two junior Grand Slam finals, at the 2023 Australian Open and the 2023 US Open, culminating with a ranking of world no. 4 in singles. He also reached the world no. 4 ranking in doubles, compiling a 36-18 win-loss record and winning the 2023 Australian Open, partnering with Cooper Williams.
Australian Open: F (2023)
French Open: SF (2023)
Wimbledon: QF (2022, 2023)
US Open: F (2023)
Australian Open: W (2023)
French Open: QF (2023)
Wimbledon: 2R (2022)
US Open: 2R (2022)
At just 16 years old, Tien won the 2022 USTA Boys 18s National Championship, which earned him a wildcard into the main draw of the 2022 US Open. This made him the youngest player to compete in the men’s singles main draw at the US Open since a then 16 years old Donald Young (also the champion at Kalamazoo) played in the 2005 US Open and also the first player aged 16 to compete since Zachary Svajda in 2019.[4] He lost in four sets to 32nd seed Miomir Kecmanović.
In August 2023, he received a wildcard into the 2023 US Open but lost to Frances Tiafoe in the first round.[5]
In July, he also received a wildcard for the 2024 Cranbrook Tennis Classic where he lifted his maiden Challenger title.[6] At the end of July, two weeks later, he made again the quarterfinals at the 2024 Chicago Men's Challenger and reached the top 250 in the rankings on 29 July 2024. He reached his second Challenger semifinal of the season defeating eight seed Hong Seong-chan. A week later, he also made the quarterfinals at the 2024 Lexington Challenger but lost to Hugo Grenier.
He secured a main draw wildcard for the US Open by winning the US Open wildcard challenge.[7]
Ranked No. 231, he qualified for the main draw at the 2024 Winston-Salem Open and defeated fellow qualifier Tristan Schoolkate and upset ninth seed Fábián Marozsán[8] and Thiago Seyboth Wild to record his first three ATP Tour wins and reach his first quarterfinal in his career. He became the youngest American ATP tour-level quarterfinalist since Brandon Nakashima in 2020 (in Delray Beach). As a result he climbed close to 40 positions in the singles rankings to the top 195 on 26 August 2024.[9]
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| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score | |
|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | M15 Fayetteville, US | WTT | Hard |  Toby Samuel | 3–6, 3–6 | ||
| Win | 1–1 | M15 Irvine, US | WTT | Hard |  Quinn Vandecasteele | 7–5, 6–2 | ||
| Win | 2–1 | M15 Norman, US | WTT | Hard (i) | Duarte Vale | 7–6(8–6), 6–2 | ||
| Win | 3–1 | M25 Columbus, US | WTT | Hard (i) | Jacob Fearnley | 2–0 ret. | ||
| Win | 4–1 | M15 San Diego, US | WTT | Hard |  Karue Sell | 6–7(6–8), 6–2, 6–2 | ||
| Win | 5–1 | M15 San Diego, US | WTT | Hard | Alafia Ayeni | 6–4, 6–7(5–7), 6–4 | ||
| Win | 6–1 | M15 Rancho Santa Fe, US | WTT | Hard | Matthew Summers | 6–3, 6–1 | ||
| Win | 7–1 | M15 Lakewood, US | WTT | Hard | Govind Nanda | 6–3, 6–3 |
|
|
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score | |
|---|---|---|---|---|---|---|---|---|---|
| Win | 1–0 | M15 East Lansing, US | WTT | Hard (i) | Alex Michelsen | Joshua Goodger Emile Hudd | 6–4, 6–3 | ||
| Win | 2–0 | M15 Irvine, US | WTT | Hard | Bryce Nakashima | Joshua Goodger Matthew Summers | 6–4, 6–2 | ||
| Win | 3–0 | M25 Austin, US | WTT | Hard |  Edward Winter | Sebastian Gorzny Brayden Michna | 4–6, 6–3, [10–2] | ||
| Win | 4–0 | M15 San Diego, US | WTT | Hard | Sebastian Gorzny |  Robin Catry Braden Shick | 1–6, 6–3, [10–1] |
| Result | Year | width=150 | Tournament | Surface | width=150 | Opponent | width=150 | Score |
|---|---|---|---|---|---|---|---|---|
| Loss | 2023 | Australian Open | Hard |  Alexander Blockx | 1–6, 6–2, 6–7(9–11) | |||
| Loss | 2023 | US Open | Hard | João Fonseca | 6–4, 4–6, 3–6 |
| Result | Year | width=150 | Tournament | Surface | width=150 | Partner | width=150 | Opponents | width=150 | Score |
|---|---|---|---|---|---|---|---|---|---|---|
| Win | 2023 | Australian Open | Hard | Cooper Williams | Alexander Blockx João Fonseca | 6–4, 6–4 |