Swiss tennis player
Jérôme Kym Kym at Swiss Indoors Basel 2024
Country (sports) Switzerland Residence Möhlin , SwitzerlandBorn (2003-02-12 ) 12 February 2003 (age 23) Height 1.98 m (6 ft 6 in) Turned pro 2019 Plays Right-handed (two-handed backhand) Prize money US$ 729,023 Career record 6–5 Career titles 0 Highest ranking No. 123 (19 May 2025) Current ranking No. 201 (15 June 2026) Australian Open Q2 (2025 , 2026 ) French Open Q1 (2025 , 2026 ) Wimbledon Q3 (2026 ) US Open 3R (2025 ) Career record 3–4 Career titles 0 Highest ranking No. 192 (19 May 2025) Current ranking No. — Last updated on: 15 June 2026.
Jérôme Cyrill Kym (born 12 February 2003) is a Swiss professional tennis player. He has a career-high ATP singles ranking of No. 123 and a doubles ranking of No. 192, both achieved on 19 May 2025. He is currently the No. 4 male singles player from Switzerland.[ 1]
Kym represents Switzerland at the Davis Cup , where he has a W/L record of 3–2.[ 2]
Kym had successful results on the ITF junior circuit , maintaining a 93–27 singles win-loss record.[citation needed ] He reached an ITF junior combined ranking of world No. 5 on 11 October 2021.[ 3]
Professional career [ edit ]
2019: Davis Cup debut [ edit ]
In February 2019, partnering Henri Laaksonen , they defeated the Russian duo of Evgeny Donskoy and Andrey Rublev in his first doubles Davis Cup tie.[ 4]
2024-2025: ATP, Top 125, Major debut and third round[ edit ]
Kym won his maiden Challenger title at the 2024 UniCredit Czech Open as a qualifier defeating Tseng Chun-hsin .[ 5]
Following his second Challenger title at the 2024 Zug Open he reached the top 200 at world No. 181 on 29 July 2024.[ 6]
At the 2024 Swiss Indoors in Basel, Kym qualified for his first ATP and ATP 500 main draw[ 7] [ 8] [ 9] but lost to fifth seed Ugo Humbert .[ 10] He reached the top 125 at world No. 123 on 19 May 2025, following the 2025 Italian Open .
Kym recorded his first ATP wins at the 2025 Swiss Open Gstaad as a wildcard, over qualifiers Calvin Hemery [ 11] [ 12] [ 13] and Francesco Passaro to reach his first ATP Tour quarterfinal.[ 14] [ 15]
Kym qualified for his first Grand Slam main draw at the 2025 US Open [ 16] [ 17] and defeated Ethan Quinn for his first major win.[ 18] [ 19] [ 20] He defeated 30th seed Brandon Nakashima in a five-set match to reach the third round of a major for the first time in his debut.[ 21] He was eliminated in the third round after a four-set defeat to world number four Taylor Fritz . In total, he earned around 237,000 US dollars in prize money.[ 22]
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.
Current through the 2026 French Open .
ATP Challenger Tour finals [ edit ]
Singles: 2 (2 titles)[ edit ]
Legend
ATP Challenger Tour (2–0)
Doubles: 3 (1 title, 2 runner-ups)[ edit ]
Legend
ATP Challenger Tour (1–2)
Finals by surface
Hard (0–2)
Clay (1–0)
ITF World Tennis Tour finals [ edit ]
Singles: 7 (3 titles, 4 runner-ups)[ edit ]
Finals by surface
Hard (2–3)
Clay (1–1)
Result
W–L
Date
Tournament
Tier
Surface
Opponent
Score
Loss
0–1
Jun 2022
M15 Heraklion, Greece
WTT
Hard
Omar Jasika
2–6, 2–6
Loss
0–2
Sep 2022
M25 Setúbal, Portugal
WTT
Hard
Adrià Soriano Barrera
6–7(7–9) , 3–6
Loss
0–3
Sep 2022
M25 Plaisir, France
WTT
Hard (i)
Antoine Hoang
6–7(0–7) , 3–6
Win
1–3
Mar 2023
M25 Trento, Italy
WTT
Hard (i)
Alastair Gray
7–6(9–7) , 6–2
Win
2–3
Jan 2024
M15 Manacor, Spain
WTT
Hard
Pol Martín Tiffon
6–4, 6–2
Win
3–3
Apr 2024
M15 Antalya, Turkey
WTT
Clay
Yanaki Milev
7–5, 6–2
Loss
3–4
May 2024
M15 Villach, Austria
WTT
Clay
Justin Engel
3–6, 6–3, 3–6
Doubles: 5 (2 titles, 3 runner-ups)[ edit ]
Finals by surface
Hard (0–1)
Clay (2–2)
Result
W–L
Date
Tournament
Tier
Surface
Partner
Opponents
Score
Loss
0–1
May 2022
M15 Antalya, Turkey
WTT
Clay
Maks Kaśnikowski
Bruno Kuzuhara Victor Lilov
walkover
Loss
0–2
Apr 2023
M25 Split, Croatia
WTT
Clay
Maks Kaśnikowski
Piotr Matuszewski Oleg Prihodko
2–6, 6–7(6–8)
Loss
0–3
Jan 2024
M15 Manacor, Spain
WTT
Hard
Adrià Soriano Barrera
Michiel de Krom Ryan Nijboer
4–6, 6–4, [9–11]
Win
1–3
Apr 2024
M25 Hammamet, Tunisia
WTT
Clay
Raphaël Collignon
Luca Giacomini Giuseppe Tresca
6–4, 7–5
Win
2–3
May 2024
M15 Villach, Austria
WTT
Clay
Nico Hipfl
Adrian Oetzbach Miloš Karol
6–4, 6–3
^ "Switzerland | ATP Rankings (Singles)" .
^ Short, Joe (1 February 2019). "Next Roger Federer in Davis Cup squad as tennis legend misses Russia match" . Express.co.uk .
^ "Jerome Kym Junior Results" .
^ svizzera, RSI Radiotelevisione (2 February 2019). "Kym e Laaksonen riaccendono l'entusiasmo" . rsi (in Italian).
^ "Jerome Kym Wins the UniCredit Czech Open" . 8 June 2024.
^ "Jerome Kym wins the Dialectic Zug Open 2024; The 21-year-old from Fricktal won the biggest title of his professional career to date with a 6:4, 6:4 victory in the final against Argentinian Roman Andres Burruchaga (ATP 148). " . 28 July 2024.
^ "Jérôme Kym wins the Swiss showdown" . 19 October 2024.
^ "First ATP 500 maindraw and at home in Basel❤️💙" . 20 October 2024.
^ "Jérôme Kym in the main draw at the Swiss Indoors" . blue News. 20 October 2024.
^ "Andrey Rublev boosts ATP Finals hopes after winning his Swiss Indoors debut match" . 21 October 2024.
^ @TennisTV (July 15, 2025). "First Win Feels 🥹 Jerome Kym earns his first ATP Tour win with a 7-5 4-6 7-5 victory over Hemery, in front of his home crowd! @SwissOpenGstaad" (Tweet ) – via X (formerly Twitter) .
^ "Jérôme Kym wins his first match on the ATP Tour" . blue News. 15 July 2025.
^ "Kym réussit sa première sur le circuit ATP – grosse déception pour Wawrinka-" (in French). 15 July 2025.
^ "Kym porte haut les couleurs suisses à Gstaad" (in French). 17 July 2025.
^ @ATPTour (July 17, 2025). "Kym Possible 🚀The home crowd goes wild as Jerome Kym battles past Passaro to seal a first-time place in the final 8! 🇨🇭@SwissOpenGstaad #SwissOpenGstaad" (Tweet ) – via X (formerly Twitter) .
^ @ATPChallenger (August 22, 2025). "Grand Slam stage unlocked ✅ Coleman Wong, Martin Damm, Zsombor Piros, Jerome Kym and Ignacio Buse qualify for their first-ever Grand Slam main draw! #USOpen #ATPChallenger" (Tweet ) – via X (formerly Twitter) .
^ "Two Swiss players make it through; Riedi and Kym are in the main draw of the US Open for the first time" . 22 August 2025.
^ "US Open Kym celebrates the biggest success of his career with a successful Grand Slam debut" . 25 August 2025.
^ "Surging Swiss Kym striking to the beat of his own drum" . ATPTour . 27 August 2025.
^ "Après Jérôme Kym, Leandro Riedi franchit aussi le 1er tour!" (in French). 25 August 2025.
^ "Djokovic 'trying to solve the riddle' after comeback win" . BBC Sport . 27 August 2025.
^ "US Open, 3. Runde - Fritz eine Nummer zu gross: Kym nach heroischem Kampf draussen" . Schweizer Radio und Fernsehen (SRF) (in German). Retrieved 2025-08-31 .