Jérôme Kym

Jérôme Cyrill Kym (born 12 February 2003) is a Swiss professional tennis player. He has a career high ATP singles ranking of world No. 127 achieved on 5 May 2025. He is currently the No. 1 Swiss player.^[1]

Jérôme Kym

Kym at Swiss Indoors Basel 2024
Country (sports)	Switzerland
Residence	Möhlin, Switzerland
Born	(2003-02-12) 12 February 2003 (age 22) Rheinfelden, Switzerland
Height	1.98 m (6 ft 6 in)
Turned pro	2019
Plays	Right-handed (two-handed backhand)
Prize money	US $230,408
Singles
Career record	2–2 (at ATP Tour level, Grand Slam level, and in Davis Cup)
Career titles	0
Highest ranking	No. 127 (5 May 2025)
Current ranking	No. 127 (5 May 2025)
Grand Slam singles results
Australian Open	Q2 (2025)
US Open	Q3 (2024)
Doubles
Career record	2–2 (at ATP Tour level, Grand Slam level, and in Davis Cup)
Career titles	0
Highest ranking	No. 206 (6 January 2025)
Current ranking	No. 223 (17 March 2025)
Grand Slam doubles results
French Open Junior	2R (2021)
Last updated on: 21 April 2025.

Kym represents Switzerland at the Davis Cup, where he has a W/L record of 1–0.^[2]

Career

In February 2019, partnering Henri Laaksonen, they defeated the Russian duo of Evgeny Donskoy and Andrey Rublev in his first doubles Davis Cup tie.^[3]

2024: Maiden Challenger title, ATP Tour debut

Kym won his maiden Challenger title at the 2024 UniCredit Czech Open as a qualifier defeating Tseng Chun-hsin.^[4] Following his second Challenger title at the 2024 Zug Open he reached the top 200 at world No. 181 on 29 July 2024.^[5]

At the 2024 Swiss Indoors in Basel, Kym qualified for his first ATP 500 main draw^[6][7][8] but lost to fifth seed Ugo Humbert.^[9]

ATP Challenger Tour finals

Singles: 2 (2 titles)

Legend ATP Challenger Tour (2–0)

Finals by surface Hard (0–0) Clay (2–0)

Result	W–L	Date	Tournament	Surface	Opponent	Score
Win	1–0	Jun 2024	Prostějov, Czech Republic	Clay	Tseng Chun-hsin	6–2, 3–6, 6–2
Win	2–0	Jul 2024	Zug, Switzerland	Clay	Román Andrés Burruchaga	6–4, 6–4

Doubles: 2 (2 runner-ups)

Legend ATP Challenger Tour (0–2)

Finals by surface Hard (0–2) Clay (0–0)

Result	W–L	Date	Tournament	Surface	Partner	Opponents	Score
Loss	0–1	Mar 2022	Lugano, Switzerland	Hard (i)	Leandro Riedi	Ruben Bemelmans Daniel Masur	4–6, 7–6(7–5), [7–10]
Loss	0–2	Jan 2025	Canberra, Australia	Hard	Pierre-Hugues Herbert	Ryan Seggerman Eliot Spizzirri	6–1, 5–7, [5–10]

ITF World Tennis Tour finals

Singles: 7 (3 titles, 4 runner-ups)

Legend ITF WTT (3–4)

Finals by surface Hard (2–3) Clay (1–1)

Result	W–L	Date	Tournament	Surface	Opponent	Score
Loss	0–1	Jun 2022	M15 Heraklion, Greece	Hard	Omar Jasika	2–6, 2–6
Loss	0–2	Sep 2022	M25 Setúbal, Portugal	Hard	Adrià Soriano Barrera	6–7(7–9), 3–6
Loss	0–3	Sep 2022	M25 Plaisir, France	Hard (i)	Antoine Hoang	6–7(0–7), 3–6
Win	1–3	Apr 2023	M25 Trento, Italy	Hard (i)	Alastair Gray	7–6(9–7), 6–2
Win	2–3	Jan 2024	M15 Manacor, Spain	Hard	Pol Martín Tiffon	6–4, 6–2
Win	3–3	Apr 2024	M15 Antalya, Turkey	Clay	Yanaki Milev	7–5, 6–2
Loss	3–4	May 2024	M15 Villach, Austria	Clay	Justin Engel	3–6, 6–3, 3–6

Doubles: 4 (1 title, 3 runner-ups)

Legend ITF WTT (1–3)

Finals by surface Hard (0–1) Clay (1–2)

Result	W–L	Date	Tournament	Surface	Partner	Opponents	Score
Loss	0–1	May 2022	M15 Antalya, Turkey	Clay	Maks Kaśnikowski	Bruno Kuzuhara Victor Lilov	walkover
Loss	0–2	Apr 2023	M25 Split, Croatia	Clay	Maks Kaśnikowski	Piotr Matuszewski Oleg Prihodko	2–6, 6–7(6–8)
Loss	0–3	Jan 2024	M15 Manacor, Spain	Hard	Adrià Soriano Barrera	Michiel de Krom Ryan Nijboer	4–6, 6–4, [9–11]
Win	1–3	Apr 2024	M25 Hammamet, Tunisia	Clay	Raphaël Collignon	Luca Giacomini Giuseppe Tresca	6–4, 7–5