Tennis - Lukas Klein

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Results - Singles

• 2025

  Victory : 0
  Final : 0
  Summary : 3 Victories / 1 Defeat
  
  

  Australian Open Men's from 6 January to 26 January 2025 (Hard)
  Qualifications - First Round	defeat	Alexis Galarneau	6-4 3-6 7-5
  Qualifications - Second Round	defeat	Eliot Spizzirri	6-3 6-4
  Qualifications - Third Round	defeat	Terence Atmane	6-4 6-1
  First Round	defeated by	Sebastian Korda	6-3 0-6 6-3 7-6

• 2024

  Victory : 0
  Final : 0
  Summary : 21 Victories / 13 Defeats
  
  

  Brisbane - 250 from 30 December 2023 to 7 January 2024 (Hard)
  Qualifications - First Round	defeat	Quentin Halys	6-4 7-6
  Qualifications - Second Round	defeat	Maxime Cressy	4-6 7-6 6-4
  Round of 32	defeat	Sebastian Baez	4-6 6-3 6-4
  Round of 16	defeated by	Matteo Arnaldi	6-4 3-6 7-5
  Australian Open Men's from 8 January to 28 January 2024 (Hard)
  Qualifications - First Round	defeat	Marco Trungelliti	6-3 3-6 6-3
  Qualifications - Second Round	defeat	Denis Kudla	6-3 6-7 6-4
  Qualifications - Third Round	defeat	Stefano Napolitano	7-6 7-6
  First Round	defeat	Soon Woo Kwon	7-6 4-6 7-6 6-3
  Second Round	defeated by	Alexander Zverev	7-5 3-6 4-6 7-6 7-6
  Doha - 250 from 17 February to 25 February 2024 (Hard)
  Qualifications - First Round	defeat	Beibit Zhukayev	6-4 6-3
  Qualifications - Second Round	defeated by	Alexandre Muller	6-4 6-4
  Indian Wells from 4 March to 19 March 2024 (Hard)
  Qualifications - First Round	defeat	Maximilian Marterer	6-2 6-4
  Qualifications - Second Round	defeat	Zachary Svajda	6-4 6-7 6-3
  First Round	defeat	Nicolas Moreno de Alboran	7-6 6-4
  Second Round	defeated by	Casper Ruud	6-4 7-6
  Miami - 1000 from 18 March to 2 April 2024 (Hard)
  Qualifications - First Round	defeat	Benoît Paire	6-1 7-6
  Qualifications - Second Round	defeat	Jakub Mensik	7-6 7-5
  First Round	defeated by	Alex Michelsen	7-6 6-2
  Estoril - 250 from 30 March to 7 April 2024 (Clay)
  Qualifications - First Round	defeat	Pedro Araujo	6-3 6-0
  Qualifications - Second Round	defeated by	Jaime Faria	6-4 6-7 6-1
  Madrid from 22 April to 5 May 2024 (Clay)
  Qualifications - First Round	defeat	Pol Martin Tiffon	6-3 6-2
  Qualifications - Second Round	defeat	Thiago Agustin Tirante	6-3 6-3
  First Round	defeat	Pablo Llamas Ruiz	6-1 4-6 7-6
  Second Round	defeated by	Tommy Paul	6-7 6-1 6-4
  Roland Garros Men's from 20 May to 9 June 2024 (Clay)
  Qualifications - First Round	defeated by	Gustavo Heide	1-6 6-3 7-6
  Wimbledon Men's from 24 June to 14 July 2024 (Grass)
  Qualifications - First Round	defeat	Tristan Boyer	6-4 7-6
  Qualifications - Second Round	defeated by	Timofey Skatov	7-6 7-6
  Gstaad from 13 July to 21 July 2024 (Clay)
  Round of 32	defeat	Stanislas Wawrinka	7-6 2-6 7-5
  Round of 16	defeated by	Quentin Halys	6-3 6-7 6-4
  Kitzbuhel from 20 July to 27 July 2024 (Clay)
  Qualifications - First Round	defeat	Vitaliy Sachko	7-6 6-1
  Qualifications - Second Round	defeat	Otto Virtanen	6-2 6-4
  Round of 32	defeated by	Sumit Nagal	6-4 1-6 7-6
  US Open Men's from 19 August to 8 September 2024 (Hard)
  Qualifications - First Round	defeated by	Joao Fonseca	4-6 6-4 6-2
  Stockholm from 12 October to 20 October 2024 (Indoor)
  Qualifications - First Round	defeated by	Zsombor Piros	6-7 6-2 6-3

• 2023

  Victory : 0
  Final : 0
  Summary : 21 Victories / 22 Defeats
  
  

  Canberra from 2 January to 8 January 2023 (Hard)
  Round of 32	defeated by	Luca Nardi	7-5 6-2
  Australian Open Men's from 9 January to 29 January 2023 (Hard)
  Qualifications - First Round	defeated by	Marc Polmans	6-3 6-4
  Ottignies - Louvain-la-Neuve from 23 January to 29 January 2023 (Hard)
  Round of 32	defeated by	Ernests Gulbis	6-4 6-2
  Marseille from 19 February to 26 February 2023 (Indoor)
  Qualifications - First Round	defeat	Clément Chidekh	4-6 7-5 7-6
  Qualifications - Second Round	defeat	Zsombor Piros	7-5 6-1
  Round of 32	defeated by	David Goffin	6-2 6-4
  Pau from 27 February to 5 March 2023 (Indoor)
  Round of 32	defeated by	Joris De Loore	3-6 6-3 7-6
  Lugano from 6 March to 12 March 2023 (Indoor)
  Round of 32	defeated by	Cem Ilkel	6-4 4-6 7-5
  Miami from 20 March to 2 April 2023 (Hard)
  Qualifications - First Round	defeat	Matteo Arnaldi	6-4 4-6 6-4
  Qualifications - Second Round	defeated by	Christopher Eubanks	6-7 6-3 7-6
  Split from 10 April to 16 April 2023 (Clay)
  Round of 32	defeated by	Mate Valkusz	3-6 6-3 7-6
  Banja Luka from 17 April to 23 April 2023 (Clay)
  Qualifications - First Round	defeat	Arthur Cazaux	6-4 6-4
  Qualifications - Second Round	defeated by	Abedallah Shelbayh	6-4 6-2
  Madrid from 23 April to 7 May 2023 (Clay)
  Qualifications - First Round	defeated by	Hugo Grenier	6-7 6-3 6-4
  Prague from 1 May to 7 May 2023 (Clay)
  Round of 32	defeat	Mate Valkusz	6-4 1-6 6-1
  Round of 16	defeat	Franco Agamenone	6-3 7-6
  Quarter-Finals	defeat	Zdenek Kolar	6-3 7-5
  Semi-Finals	defeated by	Sebastian Ofner	7-6 0-6 6-3
  Prague 2 from 8 May to 14 May 2023 (Clay)
  Round of 32	defeat	Yaroslav Demin	7-5 6-1
  Round of 16	defeat	Guido Andreozzi	5-7 6-3 6-3
  Quarter-Finals	defeated by	Dominik Koepfer	6-4 6-7 6-1
  Roland Garros Men's from 22 May to 11 June 2023 (Clay)
  Qualifications - First Round	defeat	Mariano Navone	6-0 6-4
  Qualifications - Second Round	defeated by	Flavio Cobolli	6-4 6-4
  Troisdorf from 29 May to 4 June 2023 (Clay)
  Round of 32	defeat	Marko Topo	6-3 6-7 6-4
  Round of 16	defeated by	Ivan Gakhov	6-4 6-2
  Prostejov from 5 June to 11 June 2023 (Clay)
  Round of 32	defeat	Matheus Pucinelli De Almeida	6-4 3-6 6-4
  Round of 16	defeat	Emilio Nava	6-3 6-2
  Quarter-Finals	defeat	Jiri Lehecka	6-3 6-4
  Semi-Finals	defeated by	Dalibor Svrcina	6-3 4-6 6-4
  Bratislava from 12 June to 18 June 2023 (Clay)
  Round of 32	defeated by	Marcelo Tomas Barrios Vera	1-6 7-5 6-0
  Ikley from 18 June to 24 June 2023 (Grass)
  Round of 32	defeated by	Mattia Bellucci	4-6 6-4 6-4
  Wimbledon Men's from 26 June to 16 July 2023 (Grass)
  Qualifications - First Round	defeat	Vit Kopriva	6-3 6-4
  Qualifications - Second Round	defeated by	Shintaro Mochizuki	6-7 6-3 6-2
  Salzburg from 10 July to 16 July 2023 (Clay)
  Round of 32	defeat	Dennis Novak	7-5 5-7 6-3
  Round of 16	defeated by	Sebastian Ofner	6-4 7-5
  Tampere from 17 July to 23 July 2023 (Clay)
  Round of 32	defeat	Elmar Ejupovic	6-3 6-4
  Round of 16	defeat	Vit Kopriva	7-5 6-1
  Quarter-Finals	defeated by	Dalibor Svrcina	7-6 6-1
  Liberec from 31 July to 6 August 2023 (Clay)
  Round of 32	defeat	João Lucas Reis da Silva	6-1 6-2
  Round of 16	defeated by	Dino Prizmic	6-2 7-6
  US Open Men's from 22 August to 10 September 2023 (Hard)
  Qualifications - First Round	defeat	Mariano Navone	6-1 6-2
  Qualifications - Second Round	defeat	Maximilian Marterer	7-6 6-2
  Qualifications - Third Round	defeated by	Hugo Gaston	1-6 6-3 6-1

• 2022

  Victories : 2 (Troisdorf, Alicante)
  Final : 1 (Ortisei)
  Summary : 44 Victories / 22 Defeats
  
  

  Marbella from 28 March to 3 April 2022 (Clay)
  Qualifications - First Round	defeat	Titouan Droguet	6-4 6-3
  Qualifications - Second Round	defeat	Álvaro López San Martín	6-3 6-4
  Round of 32	defeated by	Nicolas Alvarez Varona	7-6 6-4
  Murcia from 4 April to 9 April 2022 (Clay)
  Round of 32	defeat	Andrea Pellegrino	6-3 1-6 6-3
  Round of 16	defeated by	Jonas Forejtek	6-3 7-5
  Split from 18 April to 24 April 2022 (Clay)
  Round of 32	defeat	Andrey Kuznetsov	6-4 7-5
  Round of 16	defeated by	Christopher O'Connell	6-3 7-5
  Ostrava from 25 April to 1 May 2022 (Clay)
  Qualifications - First Round	defeat	Jan Nedvidek	6-0 6-0
  Qualifications - Second Round	defeated by	Mats Rosenkranz	7-6 3-6 7-6
  Round of 32	defeated by	Dennis Novak	7-6 7-6
  Mauthausen from 2 May to 8 May 2022 (Clay)
  Qualifications - First Round	defeat	Alexander Erler	4-6 6-0 6-3
  Qualifications - Second Round	defeated by	Mate Valkusz	7-6 6-1
  Gonet Geneva Open from 14 May to 21 May 2022 (Clay)
  Qualifications - First Round	defeated by	Facundo Bagnis	4-6 6-3 6-2
  Troisdorf from 23 May to 29 May 2022 (Clay)
  Qualifications - First Round	defeat	Pawel Cias	6-4 6-7 6-1
  Qualifications - Second Round	defeat	Hady Habib	6-1 6-3
  Round of 32	defeat	Facundo Mena	6-2 6-2
  Round of 16	defeat	Nicola Kuhn	6-3 4-1 ab.
  Quarter-Finals	defeat	Hugo Grenier	7-6 6-4
  Semi-Finals	defeat	Henri Squire	6-4 6-1
  Final	defeat	Zizou Bergs	6-2 6-4
  Prostejov from 30 May to 5 June 2022 (Clay)
  Round of 32	defeat	Alexander Erler	6-4 6-0
  Round of 16	defeat	Enzo Couacaud	6-2 6-3
  Quarter-Finals	defeat	Benjamin Hassan	7-6 7-5
  Semi-Finals	defeated by	Dalibor Svrcina	7-5 6-2
  Bratislava from 6 June to 12 June 2022 (Clay)
  Round of 32	defeated by	Fabian Marozsan	6-4 6-4
  Wimbledon Men's from 20 June to 10 July 2022 (Grass)
  Qualifications - First Round	defeat	Billy Harris	6-3 6-4
  Qualifications - Second Round	defeat	Yannick Hanfmann	7-5 6-2
  Qualifications - Third Round	defeat	Andreas Seppi	6-1 6-7 7-6 7-6
  First Round	defeated by	Liam Broady	4-6 6-3 7-5 6-7 6-3
  Todi from 4 July to 10 July 2022 (Clay)
  Round of 32	defeated by	Pedro Cachin	6-2 7-6
  Iasi from 11 July to 17 July 2022 (Clay)
  Round of 32	defeat	Renzo Olivo	6-3 3-6 6-4
  Round of 16	defeat	Oleksii Krutykh	6-3 6-4
  Quarter-Finals	defeated by	Pablo Andújar	6-3 6-4
  Kitzbuhel from 23 July to 31 July 2022 (Clay)
  Qualifications - First Round	defeated by	Alexander Shevchenko	6-4 6-3
  Liberec from 1 August to 7 August 2022 (Clay)
  Round of 32	defeated by	Giovanni Mpetshi Perricard	7-6 7-6
  Meerbusch from 8 August to 14 August 2022 (Clay)
  Round of 32	defeated by	Clément Tabur	6-4 2-6 7-6
  Como from 29 August to 4 September 2022 (Clay)
  Round of 32	defeat	Gianmarco Ferrari	4-6 6-1 6-4
  Round of 16	defeat	Giulio Zeppieri	7-6 2-6 7-6
  Quarter-Finals	defeat	Riccardo Bonadio	4-6 6-2 6-4
  Semi-Finals	defeated by	Francesco Passaro	6-4 6-1
  Tulln from 5 September to 11 September 2022 (Clay)
  Qualifications - First Round	defeat	Lukas Krainer	7-6 7-6
  Qualifications - Second Round	defeat	Marko Andrejic	7-5 6-4
  Round of 32	defeat	Dennis Novak	7-6 6-4
  Round of 16	defeat	Felipe Meligeni Alves	4-6 7-6 6-4
  Quarter-Finals	defeated by	Elias Ymer	7-5 6-3
  Sibiu from 19 September to 25 September 2022 (Clay)
  Round of 32	defeat	Victor Vlad Cornea	6-2 7-5
  Round of 16	defeat	Zdenek Kolar	7-5 6-3
  Quarter-Finals	defeated by	Damir Dzumhur	7-6 6-1
  Alicante from 3 October to 9 October 2022 (Clay)
  Round of 32	defeat	Kacper Zuk	6-3 6-4
  Round of 16	defeat	Michael Geerts	4-6 7-6 6-4
  Quarter-Finals	defeat	Salvatore Caruso	6-3 6-0
  Semi-Finals	defeat	Fabian Marozsan	6-4 7-6
  Final	defeat	Nick Hardt	6-3 6-4
  Ismaning from 9 October to 16 October 2022 (Indoor)
  Round of 32	defeat	Otto Virtanen	6-1 6-4
  Round of 16	defeated by	Elmar Ejupovic	3-6 6-3 7-5
  Vilnius from 17 October to 23 October 2022 (Indoor)
  Round of 32	defeat	Alastair Gray	6-3 3-6 7-6
  Round of 16	defeat	Stefano Travaglia	6-0 7-5
  Quarter-Finals	defeated by	Dan Added	7-5 6-3
  Ortisei from 24 October to 30 October 2022 (Indoor)
  Round of 32	defeat	Mirza Basic	6-3 6-4
  Round of 16	defeat	Nerman Fatic	6-3 2-2 ab.
  Quarter-Finals	defeat	Luca Nardi	6-1 3-6 6-1
  Semi-Finals	defeat	Andrea Vavassori	7-6 6-4
  Final	defeated by	Borna Gojo	7-6 6-3
  Bratislava 2 from 7 November to 13 November 2022 (Indoor)
  Round of 32	defeat	Hamad Medjedovic	6-3 6-2
  Round of 16	defeat	Jozef Kovalík	7-6 6-3
  Quarter-Finals	defeated by	Tomas Machac	6-4 6-7 6-3

• 2021

  Victory : 0
  Final : 0
  Summary : 28 Victories / 22 Defeats
  
  

  Antalya from 5 January to 13 January 2021 (Grass)
  Qualifications - First Round	defeated by	Adrian Andreev	6-3 7-6
  Cherbourg from 7 February to 14 February 2021 (Indoor)
  Round of 32	defeat	Goncalo Oliveira	6-1 6-4
  Round of 16	defeat	Jurij Rodionov	4-6 6-1 6-3
  Quarter-Finals	defeated by	Hugo Gaston	6-0 6-3
  Concepcion from 15 February to 21 February 2021 (Clay)
  Round of 32	defeat	Facundo Mena	7-5 6-1
  Round of 16	defeated by	Daniel Altmaier	1-6 6-3 6-3
  Córdoba from 22 February to 28 February 2021 (Clay)
  Qualifications - First Round	defeated by	Ernesto Escobedo	7-6 4-6 6-1
  Buenos Aires from 27 February to 7 March 2021 (Clay)
  Qualifications - First Round	defeat	Andrea Collarini	6-4 7-5
  Qualifications - Second Round	defeat	Thiago Seyboth Wild	6-3 7-5
  Qualifications - Third Round	defeat	Ernesto Escobedo	6-2 6-3
  Round of 32	defeat	Andrej Martin	6-4 6-3
  Round of 16	defeated by	Diego Sebastian Schwartzman	6-4 6-2
  Santiago from 6 March to 14 March 2021 (Clay)
  Qualifications - First Round	defeated by	Mario Vilella Martinez	6-4 6-2
  Zadar from 22 March to 28 March 2021 (Clay)
  Round of 32	defeat	Vladyslav Orlov	6-1 6-2
  Round of 16	defeat	Michael Vrbensky	5-7 6-3 6-1
  Quarter-Finals	defeat	Gianluca Mager	6-4 4-6 6-4
  Semi-Finals	defeated by	Nikola Milojevic	6-4 4-6 6-2
  Split from 5 April to 11 April 2021 (Clay)
  Qualifications - First Round	defeat	Jerko Brkic	6-1 6-2
  Qualifications - Second Round	defeated by	Mirza Basic	6-2 6-4
  Split 2 from 12 April to 18 April 2021 (Clay)
  Qualifications - First Round	defeat	Mats Moraing	4-6 6-3 6-3
  Qualifications - Second Round	defeat	Bozo Barun	6-1 6-4
  Round of 32	defeated by	Hugo Gaston	6-3 3-6 6-3
  Ostrava from 26 April to 2 May 2021 (Clay)
  Qualifications - First Round	defeat	Andrew Paulson	2-6 6-3 6-2
  Qualifications - Second Round	defeat	Rudolf Molleker	6-3 6-1
  Round of 32	defeat	Peter Polansky	6-3 7-5
  Round of 16	defeat	Lukas Rosol	7-6 4-6 6-2
  Quarter-Finals	defeated by	Arthur Rinderknech	3-6 6-3 6-4
  Belgrade 2 from 24 May to 30 May 2021 (Clay)
  Qualifications - First Round	defeat	Marko Tepavac	6-4 6-1
  Qualifications - Second Round	defeated by	Christopher O'Connell	7-6 7-5
  Round of 32	defeated by	Federico Delbonis	3-6 6-3 6-4
  Bratislava from 7 June to 13 June 2021 (Clay)
  Round of 32	defeated by	Jiri Lehecka	4-6 6-3 7-6
  Prostejov from 14 June to 20 June 2021 (Clay)
  Round of 32	defeat	Jiri Lehecka	7-5 7-5
  Round of 16	defeated by	Blaz Rola	6-4 3-6 7-6
  Mallorca from 20 June to 27 June 2021 (Grass)
  Qualifications - First Round	defeat	Pablo Cuevas	6-3 6-4
  Qualifications - Second Round	defeat	Denis Istomin	6-3 2-6 6-4
  Round of 32	defeat	Dusan Lajovic	6-4 7-6
  Round of 16	defeated by	Jordan Thompson	6-4 6-4
  Perugia from 5 July to 11 July 2021 (Clay)
  Round of 32	defeat	Riccardo Bonadio	6-1 7-6
  Round of 16	defeated by	Holger Vitus Nodskov Rune	6-4 6-4
  Men's Olympic Games from 23 July to 1 August 2021 (Hard)
  First Round	defeated by	James Duckworth	5-7 6-3 7-6
  Liberec from 2 August to 8 August 2021 (Clay)
  Round of 32	defeat	Maxime Janvier	6-3 6-4
  Round of 16	defeated by	Botic van de Zandschulp	6-4 3-6 7-5
  Meerbusch from 9 August to 15 August 2021 (Clay)
  Round of 32	defeat	Tobias Kamke	6-1 6-2
  Round of 16	defeat	Duje Ajdukovic	6-4 4-6 6-4
  Quarter-Finals	defeated by	Botic van de Zandschulp	6-4 3-6 6-4
  Lüdenscheid from 16 August to 22 August 2021 (Clay)
  Round of 32	defeated by	Nicolás Jarry	1-6 7-6 7-6
  Warsaw from 23 August to 29 August 2021 (Hard)
  Round of 32	defeat	Julian Lenz	6-1 3-6 6-3
  Round of 16	defeat	Andrey Kuznetsov	7-5 6-1
  Quarter-Finals	defeated by	Javier Barranco Cosano	3-6 6-3 6-4
  Biel from 20 September to 26 September 2021 (Indoor)
  Round of 32	defeated by	Mats Moraing	5-7 6-4 6-4

• 2020

  Victory : 0
  Final : 0
  Summary : 6 Victories / 9 Defeats
  
  

  Bangkok from 12 January to 18 January 2020 (Hard)
  First Round	defeat	Kaichi Uchida	6-1 3-6 6-1
  Round of 32	defeated by	Evgeny Karlovskiy	7-6 6-4
  Rennes from 20 January to 26 January 2020 (Indoor)
  First Round	defeated by	Corentin Denolly	6-2 3-6 6-3
  Quimper from 27 January to 2 February 2020 (Indoor)
  First Round	defeat	Andrea Pellegrino	7-6 6-3
  Round of 32	defeated by	Maxime Janvier	6-3 7-6
  Cherbourg from 9 February to 16 February 2020 (Indoor)
  First Round	defeated by	Jules Marie	6-2 7-6
  Bergamo from 17 February to 23 February 2020 (Indoor)
  First Round	defeated by	Andrea Arnaboldi	7-6 6-4
  Nur-Sultan (Astana) from 9 March to 15 March 2020 (Hard)
  First Round	defeat	Rostislav Galfinger	6-0 6-1
  Round of 32	defeated by	Kimmer Coppejans	3-6 6-4 6-1
  Prague 2 from 22 August to 30 August 2020 (Clay)
  First Round	defeated by	Tallon Griekspoor	6-4 7-6
  Bratislava from 9 November to 15 November 2020 (Clay)
  Round of 32	defeat	Filip Horansky	6-4 6-4
  Round of 16	defeat	Lorenzo Giustino	6-4 6-3
  Quarter-Finals	defeat	Emil Ruusuvuori	6-4 7-5
  Semi-Finals	defeated by	Tomas Machac	7-6 6-2
  Ortisei from 16 November to 22 November 2020 (Indoor)
  Round of 32	defeated by	Julian Lenz	6-3 7-5

• 2019

  Victory : 0
  Final : 0
  Summary : 10 Victories / 7 Defeats
  
  

  Bratislava from 17 June to 23 June 2019 (Clay)
  First Round	defeat	Vit Kopriva	7-5 6-4
  Round of 32	defeated by	Lucas Miedler	6-4 4-6 7-5
  Prague from 22 July to 28 July 2019 (Clay)
  First Round	defeat	Michael Vrbensky	6-3 3-6 7-5
  Round of 32	defeat	Daniel Gimeno-Traver	6-3 6-7 6-2
  Round of 16	defeat	Andrea Collarini	6-4 6-3
  Quarter-Finals	defeated by	Frederico Ferreira Silva	3-6 6-1 5-0
  Portoroz from 12 August to 18 August 2019 (Hard)
  First Round	defeat	Andrea Vavassori	6-4 6-1
  Round of 32	defeat	Danilo Petrovic	6-3 6-4
  Round of 16	defeat	Filip Horansky	1-6 6-4 6-3
  Quarter-Finals	defeated by	Aljaz Bedene	6-3 4-6 7-6
  Glasgow from 16 September to 22 September 2019 (Hard)
  First Round	defeat	Mattéo Martineau	7-6 6-2
  Round of 32	defeated by	Mathias Bourgue	7-5 3-6 7-6
  Ismaning from 14 October to 20 October 2019 (Indoor)
  First Round	defeated by	Julian Lenz	6-4 6-3
  Brest from 21 October to 27 October 2019 (Indoor)
  First Round	defeated by	Illya Marchenko	6-4 6-2
  Bratislava 2 from 4 November to 10 November 2019 (Indoor)
  First Round	defeat	Mohamed Safwat	6-2 6-3
  Round of 32	defeat	Jirí Veselý	4-6 7-6 6-2
  Round of 16	defeated by	Mikhail Kukushkin	6-3 6-7 6-4

• 2016

  Victory : 0
  Final : 0
  Summary : 0 Victory / 1 Defeat
  
  

  Australian Open Junior Men's from 23 January to 30 January 2016 (Hard)
  First Round	defeated by	Oliver Anderson	4-6 6-1 6-4

• 2015

  Victory : 0
  Final : 0
  Summary : 1 Victory / 2 Defeats
  
  

  Wimbledon Junior Men's from 29 June to 12 July 2015 (Grass)
  First Round	defeat	Marco Mosciatti	6-1 6-3
  Round of 32	defeated by	Viktor Durasovic	3-6 6-3 6-3
  US Open Junior Men's from 31 August to 13 September 2015 (Hard)
  First Round	defeated by	William Blumberg	7-6 6-1

Results - Doubles

• 2021

  Victory : 0
  Final : 0
  Summary : 1 Victory / 1 Defeats
  
  

  Men's Olympic Games - Doubles from 23 July to 31 July 2021 (Hard)
  Round of 32	L. Klein - F. Polásek	defeat	A. Karatsev - D. Medvedev	7-5 6-4
  Round of 16	L. Klein - F. Polásek	defeated by	A. Krajicek - T. Sandgren	6-7 6-2 10-5

• 2016

  Victory : 0
  Final : 1 (Australian Open Junior Men's Doubles)
  Summary : 4 Victories / 1 Defeats
  
  

  Australian Open Junior Men's Doubles from 24 January to 31 January 2016 (Hard)
  Round of 32	L. Klein - P. Rikl	defeat	L. Caruana - A. Ciurletti	6-4 6-2
  Round of 16	L. Klein - P. Rikl	defeat	C. Oh - T. Wu	6-4 6-4
  Quarter-Finals	L. Klein - P. Rikl	defeat	K. Raisma - M. Siimar	7-6 7-6
  Semi-Finals	L. Klein - P. Rikl	defeat	E. Benchetrit - E. Furness	7-6 7-6
  Final	L. Klein - P. Rikl	defeated by	A. De Minaur - B. Ellis	3-6 7-5 12-10

• 2015

  Victory : 0
  Final : 0
  Summary : 2 Victories / 2 Defeats
  
  

  Wimbledon Junior Men's Doubles from 29 June to 12 July 2015 (Grass)
  Round of 32	J. Clarke - L. Klein	defeated by	N. Borges - M. Dembek	6-4 6-3
  US Open Junior Men's Doubles from 31 August to 13 September 2015 (Hard)
  Round of 32	L. Klein - P. Rikl	defeat	A. Rotsaert - J. Wolf	7-6 6-3
  Round of 16	L. Klein - P. Rikl	defeat	Y. Chung - S. Hong	7-5 7-5
  Quarter-Finals	L. Klein - P. Rikl	defeated by	B. Holt - R. Smith	2-6 6-3 10-4

Lukas Klein - Identity

• Complete name : Lukas Klein Klein Lukas
• Country : Slovakia
• Gender : M
• Age : 26 years
• Birthdate : 22 March 1998  (1998-03-22)
• Place of birth : Spisská Nová Ves (Slovakia)
• Place of residence : Spisská Nová Ves (Slovakia)
• Height : 193 cm
• Weight : 85 kg
• Plays : Right-Handed
• ATP Rankings : 143th on 8 February 2024 with 464 points