Klein at the2023 Wimbledon Championships | |
| Country (sports) | |
|---|---|
| Residence | Spišská Nová Ves, Slovakia |
| Born | (1998-03-22)22 March 1998 (age 27) Spišská Nová Ves, Slovakia[1] |
| Height | 1.93 m (6 ft 4 in) |
| Plays | Right-handed |
| Coach | Karol Kučera |
| Prize money | $1,200,671 |
| Singles | |
| Career record | 11–22 |
| Career titles | 0 |
| Highest ranking | No. 109 (5 August 2024) |
| Current ranking | No. 124 (20 October 2025) |
| Grand Slam singles results | |
| Australian Open | 2R (2024) |
| French Open | Q3 (2025) |
| Wimbledon | 1R (2022) |
| US Open | Q3 (2023) |
| Other tournaments | |
| Olympic Games | 1R (2021) |
| Doubles | |
| Career record | 6–7 |
| Career titles | 0 |
| Highest ranking | No. 240 (5 April 2021) |
| Current ranking | No. 381 (20 October 2025) |
| Other doubles tournaments | |
| Olympic Games | 2R (2021) |
| Last updated on: 20 October 2025. | |
Lukáš Klein (born 22 March 1998) is a Slovak professionaltennis player. Klein has a career-highATP singles ranking of world No. 109, achieved on 5 August 2024. He also has a career-high doubles ranking of No. 240, achieved on 5 April 2021.[2] He is currently the No. 1 Slovak tennis player in singles.[3]
Klein has reached 15 career singles finals, with a record of 9 wins and 6 losses, including 3ATP Challenger titles. Additionally, he has reached 11 career doubles finals, with a record of 5 wins and 6 losses, including a 1–3 result in Challenger finals.
Klein won his first Challenger title at the2021 Challenger La Manche with compatriotAlex Molčan 1–6, 7–5, [10–6].
Klein made his ATP main draw singles debut in March at the2021 Argentina Open, where he defeatedAndrea Collarini,Thiago Seyboth Wild andErnesto Escobedo to qualify for the main draw. Klein then went on to upset compatriotAndrej Martin in straight sets. He would go on to lose in the second round to top seed, local favourite and eventual championDiego Schwartzman in straight sets.[4]
He reached the top 250 at World No. 248 in singles on 28 June 2021 after reaching the second round also as a qualifier at the2021 Mallorca Championships by defeating 8th seedDušan Lajović, for his second ATP win for the season and in his career.
At theOlympics, Klein was entered as analternate forMatteo Berrettini, who had withdrawn due to a thigh injury.[5][6] He also participated in the doubles event partneringFilip Polášek and reaching the second round.
In May, he won his first Challenger at the2022 Saturn Oil Open in Troisdorf, Germany as a qualifier without dropping a set.[7]
He qualified for the2022 Wimbledon Championships making his Grand Slam debut.[8] He lost to wildcardLiam Broady in five sets.
In October 2022, he reached his second Challenger final inAlicante and won the title. As a result, he moved more than 40 positions up to a new career-high in the top 180 on 10 October 2022. Following his third final inOrtisei, Italy he moved 17 positions up into the top 150 at No. 146 on 31 October 2022.
He qualified for and reached back-to-back finals at the2023 Sparkassen ATP Challenger in Ortisei, Italy. He won his third Challenger title defeatingMaks Kaśnikowski.
In January 2024, he qualified for the2024 Brisbane International and defeated sixth seedSebastián Báez for his first ATP win of the season and only third in his career.Ranked No. 163, he qualified for the2024 Australian Open making his debut at this tournament and recorded his first Major win overKwon Soon-woo. In the next round, he took sixth seedAlexander Zverev to five sets before losing the match in a fifth set tiebreak.[9]
He qualified for the2024 BNP Paribas Open making his Masters debut and recorded his first win at this level overNicolas Moreno de Alboran. As a result he moved to a new career high in the top 130 and became the Slovak No. 1 player.[10] Next he qualified for another Masters, the2024 Miami Open defeatingBenoit Paire andJakub Menšík. He lost toAlex Michelsen in the first round. As a result he reached the top 120 in the rankings at world No. 116 on 1 April 2024.
He qualified for his third Masters of the season at the2024 Mutua Madrid Open and recorded his first win at the tournament and only second at this level, over fellow qualifierPablo Llamas Ruiz before losing to 15th seedTommy Paul.[11]
In July, Klein claimed back-to-backChallenger titles. He first won theSan Marino Open, defeatingDino Prižmić in the final. This was his first title in two years.[12] He then won theZug Open, defeatingHarold Mayot in the final.[13][14]
Klein is in a relationship with fellow professional tennis playerAnna Karolína Schmiedlová and in May 2025 the couple announced she was pregnant with their first child.[15]
| W | F | SF | QF | #R | RR | Q# | P# | DNQ | A | Z# | PO | G | S | B | NMS | NTI | P | NH |
| Tournament | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | W–L | Win % |
|---|---|---|---|---|---|---|---|---|
| Grand Slam tournaments | ||||||||
| Australian Open | A | A | A | Q1 | 2R | 1R | 1–2 | 33% |
| French Open | A | A | A | Q2 | Q1 | Q3 | 0–0 | – |
| Wimbledon | NH | A | 1R | Q2 | Q2 | Q3 | 0–1 | 0% |
| US Open | A | A | A | Q3 | Q1 | Q1 | 0–0 | – |
| Win–loss | 0–0 | 0–0 | 0–1 | 0–0 | 1–1 | 0–1 | 1–3 | 25% |
| ATP Masters 1000 tournaments | ||||||||
| Indian Wells Masters | NH | A | A | A | 2R | Q1 | 1–1 | 50% |
| Miami Open | NH | A | A | Q2 | 1R | Q1 | 0–1 | 0% |
| Monte-Carlo Masters | NH | A | A | A | A | A | 0–0 | – |
| Madrid Open | NH | A | A | Q1 | 2R | A | 1–1 | 50% |
| Italian Open | A | A | A | A | A | A | 0–0 | – |
| Canadian Open | NH | A | A | A | A | A | 0–0 | – |
| Cincinnati Masters | A | A | A | A | A | A | 0–0 | – |
| Shanghai Masters | NH | A | A | A | 0–0 | – | ||
| Paris Masters | A | A | A | A | A | 0–0 | – | |
| Win–loss | 0–0 | 0–0 | 0–0 | 0–0 | 2–3 | 0–0 | 2–3 | 40% |
| Career statistics | ||||||||
| 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | Career | ||
| Tournaments | 0 | 3 | 1 | 1 | 9 | 2 | 16 | |
| Titles / Finals | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | |
| Overall win–loss | 0–0 | 2–4 | 0–1 | 0–3 | 9–11 | 0–2 | 11–21 | 34% |
| Year-end ranking | 136 | |||||||
|
|
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
|---|---|---|---|---|---|---|---|
| Loss | 0–1 | Aug 2017 | Slovakia F2,Piešťany | Futures | Clay | 4–6, 6–3, 3–6 | |
| Loss | 0–2 | Aug 2017 | Slovakia F3,Bratislava | Futures | Clay | 4–6, 4–6 | |
| Loss | 0–3 | Oct 2017 | Czechia F7,Jablonec nad Nisou | Futures | Carpet | 4–6, 2–6 | |
| Win | 1–3 | Mar 2018 | Egypt F9,Sharm El Sheikh | Futures | Hard | 2–6, 6–3, 6–3 | |
| Win | 2–3 | Mar 2019 | M15Sharm El Sheikh, Egypt | World Tennis Tour | Hard | 6–4, 6–4 | |
| Win | 3–3 | Apr 2019 | M15Sharm El Sheikh, Egypt | World Tennis Tour | Hard | 6–2, 6–3 | |
| Win | 4–3 | Apr 2019 | M15Sharm El Sheikh, Egypt | World Tennis Tour | Hard | 6–4, 6–3 | |
| Loss | 4–4 | Jun 2019 | M25Pardubice, Czechia | World Tennis Tour | Clay | 4–6, 7–5, 6–7(6–8) | |
| Win | 5–4 | Jul 2019 | M15Piešťany, Slovakia | World Tennis Tour | Clay | 6–1, 4–6, 6–1 | |
| Win | 6–4 | Sep 2019 | M15Bratislava, Slovakia | World Tennis Tour | Clay | 7–6(7–3), 6–3 | |
| Win | 7–4 | May 2022 | Troisdorf, Germany | Challenger | Clay | 6–1, 6–4 | |
| Win | 8–4 | Oct 2022 | Alicante, Spain | Challenger | Hard | 6–3, 6–4 | |
| Loss | 8–5 | Oct 2022 | Ortisei, Italy | Challenger | Hard (i) | 6–7(4–7), 3–6 | |
| Loss | 8–6 | Sep 2023 | Istanbul, Turkey | Challenger | Hard | 6–7(5–7), 3–6 | |
| Win | 9–6 | Oct 2023 | Ortisei, Italy | Challenger | Hard (i) | 6–7(4–7), 7–6(7–4), 7–6(8–6) | |
| Win | 10–6 | Jul 2025 | San Marino | Challenger | Clay | 6–3, 6–4 | |
| Win | 11–6 | Jul 2025 | Zug, Switzerland | Challenger | Clay | 6–2, 6–7(4–7), 6–4 |
|
|
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|---|
| Win | 1–0 | Feb 2016 | Turkey F6,Antalya | Futures | Hard | 7–6(9–7), 7–6(7–5) | ||
| Win | 2–0 | Oct 2016 | Czech Republic F8,Jablonec nad Nisou | Futures | Carpet | 6–1, 6–3 | ||
| Loss | 2–1 | Oct 2016 | Czech Republic F9,Opava | Futures | Carpet | 1–6, 3–6 | ||
| Win | 3–1 | Apr 2017 | Greece F4,Heraklion | Futures | Hard | 6–4, 6–2 | ||
| Loss | 3–2 | Jul 2017 | Slovakia F1,Trnava | Futures | Clay | 2–6, 7–5, [8–10] | ||
| Loss | 3–3 | Apr 2019 | M15Sharm El Sheikh, Egypt | World Tennis Tour | Hard | 2–6, 6–3, [8–10] | ||
| Loss | 3–4 | Jun 2019 | Bratislava, Slovakia | Challenger | Clay | 2–6, 5–7 | ||
| Win | 4–4 | Sep 2020 | M15Jablonec, Czech Republic | World Tennis Tour | Clay | 6–3, 7–6(7–4) | ||
| Loss | 4–5 | Nov 2020 | Bratislava, Slovakia | Challenger | Hard | 4–6, 3–6 | ||
| Win | 5–5 | Feb 2021 | Cherbourg, France | Challenger | Hard | 1–6, 7–5, [10–6] | ||
| Loss | 5–6 | Mar 2021 | Zadar, Croatia | Challenger | Clay | 6–2, 3–6, [3–10] |
| Result | Year | To | Surface | Partner | Opponent | Score |
|---|---|---|---|---|---|---|
| Runner-up | 2016 | Australian Open | Hard | 6–3, 5–7, [10–12] |