Tseng Chun-hsin

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Tseng Chun-hsin
曾俊欣
File:Tseng WMQ23 (53061681091).jpg
Country (sports)Chinese Taipei
ResidenceTaipei, Taiwan
Born (2001-08-08) 8 August 2001 (age 24)
Taipei, Taiwan
Height1.75 m (5 ft 9 in)
Turned pro2019
PlaysRight-handed (two-handed backhand)
CoachBenjamin Ebrahimzadeh
Prize moneyUS$ 1,396,427
Singles
Career record17–38
Career titles0
Highest rankingNo. 83 (8 August 2022)
Current rankingNo. 131 (3 November 2025)[1]
Grand Slam singles results
Australian Open1R (2022, 2023)
French Open1R (2022)
Wimbledon1R (2022, 2025)
US Open1R (2022, 2025)
Doubles
Career record3–2
Career titles0
Highest rankingNo. 305 (8 August 2022)
Last updated on: 11 November 2025.
Tseng Chun-hsin
Traditional Chinese曾俊欣
Simplified Chinese曾俊欣
Transcriptions
Standard Mandarin
Hanyu PinyinZēng Jùnxīn
Tseng Chun-hsin
Medal record
Men's Tennis
Representing File:Flag of Chinese Taipei for Olympic games.svg Chinese Taipei
Summer Universiade
Gold medal – first place 2019 Naples Men's singles
Bronze medal – third place 2019 Naples Men's Team

Tseng Chun-hsin (Chinese: 曾俊欣; pinyin: Zēng Jùnxīn; born 8 August 2001), also known as Jason Tseng,[2] is a Taiwanese professional tennis player. He has a career-high singles ranking of world No. 83 by the ATP, achieved on 8 August 2022.[1] Tseng is currently the No. 1 Taiwanese player.[3]

He was also the ITF junior No. 1, first reaching this ranking on 11 June 2018 after winning the French Open Boys' Singles. He is also part of the Chinese Taipei Davis Cup team since 2018, with a W/L record of 1–0.

Early and personal life

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Tseng began playing tennis at the age of five with his father, who worked at a night market in Taiwan.[4][5] He first trained in an elementary school team located in Yonghe District, New Taipei City.[6]

He is nicknamed "the Night Market Champion" (Chinese: 夜市球王) by the Taiwanese media as his parents used to sell tanghulu at the Lehua Night Market in New Taipei City in order to support his tennis career.[4][7][8]

Career

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Pre-2019: Junior years

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He continued his training at the Mouratoglou Tennis Academy in France from age 13 to 17.[9] During that period, he won singles title at the Petits As in 2015.[10]

In 2018, He won his first ITF Futures event in Vietnam.[11] He won the boys' singles title at the French Open and claimed the Wimbledon boys' singles title in the following month.[12]

2019: ATP and Masters debut

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He made his ATP debut at the 2019 Miami Open as a wildcard.

In the 2019 Summer Universiade, Tseng won the gold medal in men's singles.[13]

2021–2022: Challenger breakthrough, Grand Slam & top 100 debuts

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In December 2021, Tseng won his first ATP Challenger title in Maia, Portugal.[14][15] He made his debut in the top 200 at world No. 188 on 20 December 2021.

He made his Grand Slam debut at the 2022 Australian Open where he received a wildcard.[16][17]

The following month in February 2022, Tseng won his second ATP Challenger title in Bangalore, India.[18] In April 2022, Tseng won his third ATP Challenger title in Murcia, Spain.[19] He reached a career-high ranking of world No. 110 on 16 May 2022.[1]

He qualified for his second Grand Slam tournament at the 2022 French Open to make his debut at this major.[20] He lost in the first round in five sets in a match that lasted 4 hours 23 minutes against João Sousa.[21] As a result of reaching the semifinals in Bratislava, Tseng made his debut in the top 100, at No. 97 on 13 June 2022.[1]

He participated in the 2022 Next Generation ATP Finals as the sixth seed.[22]

2023–2025: First Masters win and ATP 500 quarterfinal, back to top 100

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Ranked No. 380, he made his debut in qualifying at the Masters 1000, the 2023 Rolex Shanghai Masters. He qualified for the main draw and defeated Alexander Shevchenko on his debut at this tournament, recording his first Masters win. As a result, he moved close to 80 positions back up, one position shy of the top 300 on 16 October 2023.[1]

In March 2024, he won his fourth Challenger at the Kiskút Open in Szekesfehevar, Hungary and returned to the top 250 on 18 March 2024.[23]

Following his fifth Challenger title at the 2024 Internazionali di Tennis Città di Vicenza in June,[24] and a final showing at the 2024 UniCredit Czech Open in Prostejov,[25] he moved again 80 positions back up and returned to the top 175 on 10 June 2024.[1]

Ranked No. 159, he entered the second round of the main draw at the 2024 Croatia Open as a lucky loser replacing third seed Holger Rune and defeated Fabio Fognini to reach his first ATP Tour quarterfinal.[26][27] Three weeks later he reached the final at the 2024 San Marino Open, losing to Alexandre Müller in a deciding set tiebreak.[28] As a result, two weeks later, he returned to the top 115 on 19 August 2024.[1]

Following a second ATP career quarterfinal showing at the ATP 500 2025 Rio Open where he qualified and defeated third seed Alejandro Tabilo, his biggest and first top-50 win,[29][30] and local wildcard and favorite Thiago Monteiro, Tseng returned to the top 100 in the rankings on 24 February 2025.[31][32][1] Tseng was only the second player representing Chinese Taipei to reach an ATP 500 quarterfinal, alongside Lu Yen-hsun.[33]

ATP Challenger and ITF Tour finals

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Singles 15 (9–6)

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Legend
ATP Challenger Tour (5–5)
ITF Futures/World Tennis Tour (4–1)
Finals by surface
Hard (4–0)
Clay (5–6)
Result W–L    Date    Tournament Tier Surface Opponent Score
Win 1–0 May 2018 Vietnam F1, Thừa Thiên Huế Futures Hard Vietnam Lý Hoàng Nam 6–3, 7–6(7–0)
Win 2–0 Jun 2018 Portugal F9, Póvoa de Varzim Futures Hard Portugal Nuno Borges 6–3, 6–4
Win 3–0 Jul 2018 Chinese Taipei F2, Taipei Futures Hard Chinese Taipei Chen Ti 6–1, 6–7(5–7), 7–6(7–1)
Loss 3–1 Jul 2019 Prague, Czech Republic Challenger Clay Spain Mario Vilella Martínez 4–6, 2–6
Loss 3–2 Oct 2020 M25 Hamburg, Germany World Tennis Tour Clay Poland Kacper Żuk 4–6, 6–7(4–7)
Win 4–2 Aug 2021 M25 Pitești, Romania World Tennis Tour Clay Argentina Hernán Casanova 6–3, 3–6, 6–0
Loss 4–3 Dec 2021 Maia, Portugal Challenger Clay (i) France Geoffrey Blancaneaux 6–3, 3–6, 2–6
Win 5–3 Dec 2021 Maia, Portugal Challenger Clay (i) Portugal Nuno Borges 5–7, 7–5, 6–2
Win 6–3 Feb 2022 Bengaluru, India Challenger Hard Croatia Borna Gojo 6–4, 7–5
Loss 6–4 Mar 2022 Roseto degli Abruzzi, Italy Challenger Clay France Manuel Guinard 1–6, 2–6
Win 7–4 Apr 2022 Murcia, Spain Challenger Clay Slovakia Norbert Gombos 6–4, 6–1
Win 8–4 Mar 2024 Székesfehérvár, Hungary Challenger Clay France Titouan Droguet 4–1 ret.
Win 9–4 May 2024 Vicenza, Italy Challenger Clay Argentina Marco Trungelliti 6–3, 6–2
Loss 9–5 Jun 2024 Prostějov, Czech Republic Challenger Clay Switzerland Jérôme Kym 2–6, 6–3, 2–6
Loss 9–6 Jul 2024 San Marino Challenger Clay France Alexandre Muller 3–6, 6–4, 6–7(3-7)

Doubles (2–0)

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Legend
ATP Challenger Tour (1–0)
Futures/ITF World Tennis Tour (1–0)
Finals by surface
Hard (0–0)
Clay (2–0)
Result W–L    Date    Tournament Tier Surface Partner Opponents Score
Win 1–0 Aug 2021 M25 Pitești, Romania World Tennis Tour Clay France Valentin Royer France Corentin Denolly
France Clément Tabur
4–6, 6–2, [10–8]
Win 1–0 Apr 2024 Barletta, Italy Challenger Clay Czech Republic Zdeněk Kolář France Théo Arribagé
France Benjamin Bonzi
1–6, 6–3, [10–7]

Junior Grand Slam finals

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Singles (2–1)

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Result Year Tournament Surface Opponent Score
Loss 2018 Australian Open Hard United States Sebastian Korda 6–7(6–8), 4–6
Win 2018 French Open Clay Argentina Sebastián Báez 7–6(7–5), 6–2
Win 2018 Wimbledon Grass United Kingdom Jack Draper 6–1, 6–7(2–7), 6–4

Doubles (0–1)

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Result Year Tournament Surface Partner Opponents Score
Loss 2018 French Open Clay Chinese Taipei Ray Ho Czech Republic Ondřej Štyler
Japan Naoki Tajima
4–6, 4–6

Performance timeline

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Key
W  F  SF QF #R RR Q# DNQ A NH
(W) winner; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (DNQ) did not qualify; (A) absent; (NH) not held; (SR) strike rate (events won / competed); (W–L) win–loss record.
To avoid confusion and double counting, these charts are updated at the conclusion of a tournament or when the player's participation has ended.

Singles

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Tournament 2019 2020 2021 2022 2023 2024 2025 SR W–L Win %
Grand Slam tournaments
Australian Open A A A 1R 1R A Q2 0 / 2 0–2 0%
French Open A A A 1R Q2 A Q1 0 / 1 0–1 0%
Wimbledon Q1 NH A 1R Q1 A R1 0 / 2 0–2 0%
US Open A A A 1R A Q2 R1 0 / 2 0–2 0%
Win–loss 0–0 0–0 0–0 0–4 0–1 0–0 0-2 0 / 7 0–7 0%
ATP Tour Masters 1000
Indian Wells Masters A NH A Q1 A A Q1 0 / 0 0–0  – 
Miami Open 1R NH A A A A R2 0 / 2 1–2 33%
Monte Carlo Masters A A A A A A Q1 0 / 0 0–0  – 
Madrid Open A NH A A Q1 A Q1 0 / 0 0–0  – 
Italian Open A A A A A A R1 0 / 1 0–1 0%
Canadian Open A A A A A A R1 0 / 1 0–1 0%
Cincinnati Masters A A A A Q2 A A 0 / 0 0–0  – 
Shanghai Masters A NH 2R Q1 Q1 0 / 1 1–1 50%
Paris Masters A A A A A A 0 / 0 0–0  – 
Year-end ranking 115 298 119 $1,011,472


References

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