Jean Marc Malkowski
2020
| J1 NONTHABURI | [8] | 2R |
| J2 CHISINAU | [4] | Quarter |
| J2 NEWDELHI | [1] | Quarter |
| J3 CHANDIGARH | [1] | Semi |
2019
| J3 THEVALLEY | [1] | Quarter |
| J4 NONTHABURI-3 | [1] | 3R |
| J2 NONTHABURI | [5] | Final |
| J2 MONTREAL | [3] | 2R |
| J4 MAURITIUS | [1] | Final |
| J3 HARARE | [2] | Quarter |
| J1 NANJING | [12] | 3R |
| J4 JAKARTA-2 | [1] | Final |
| J4 JAKARTA | [1] | Semi |
| J3 NEUCHATEL | [4] | 2R |
| J3 DERENDINGEN | [2] | 1R |
| J4 TBILISI | [2] | Final |
| J4 WINDHOEK | [1] | Win |
| J2 BURGAS | 2R | |
| J4 DOHA-2 | [4] | 1R |
| J4 DOHA | [4] | 1R |
| J3 PRETORIA | [6] | Win |
| J4 OSLO | 1R | |
| J4 OBERENTFELDEN | [8] | Quarter |
| J5 BEERSHEVA | [4] | Quarter |
| J4 TELAVIV | [5] | Quarter |
| J4 BELGRADE | [6] | 1R |
Nation
SUI
Year-end Junior World Ranking
- Year-end 2020 105th
- Year-end 2019 119th
Rival
sebastian nothhaft (0-2)
robbie arends (2-0)
wai yu kai (1-1)
niv zuckerman (1-1)
eytan michaeli (2-0)
Match Details
2020 J1 NONTHABURI
| L | 2R | Woobin Shin | 3-6 2-6 |
2020 J2 CHISINAU
| W | 1R | Jip Van Assendelft | 5-7 6-4 6-1 |
| W | 2R | Artem Podorozhnyi | 6-1 6-2 |
| L | QF | Romain Faucon | 4-6 7-5 4-6 |
2020 J2 NEWDELHI
| W | 1R | Sammr Raina | 6-2 2-6 6-1 |
| W | 2R | Danil Ozernoy | 6-4 3-6 6-1 |
| L | QF | Raphael Collignon | 2-6 0-6 |
2020 J3 CHANDIGARH
| W | 1R | Ajay Singh | 4-1 4-2 |
| W | 2R | Nishant Dabas | 4-34 4-0 |
| W | QF | Orel Kimhi | 4-0 4-2 |
| L | SF | Martin Katz | 3-6 6-3 3-6 |
2019 J3 THEVALLEY
| W | 2R | Sam Scherer | 6-0 6-4 |
| L | QF | Gabrielius Guzauskas | 3-6 1-4 |
2019 J4 NONTHABURI-3
| W | 2R | James Van Herzeele | 6-1 7-6 |
| L | 3R | Natthayut Nithithananont | 4-6 1-6 |
2019 J2 NONTHABURI
| W | 2R | Khomtat Kitthachok | 6-2 6-4 |
| W | 3R | Corban Crowther | 3-6 6-3 6-4 |
| W | QF | Wai Yu Kai | 6-4 6-4 |
| W | SF | Thantub Suksumrarn | 7-6 4-6 6-4 |
| L | F | Patorn Hanchaikul | 6-4 2-6 1-6 |
2019 J2 MONTREAL
| W | 1R | Connor Krug | 6-1 6-4 |
| L | 2R | James Tracy | 3-6 1-6 |
2019 J4 MAURITIUS
| W | 1R | Willem Roosenschoon | 6-1 6-0 |
| W | 2R | Eliott Roche | 4-6 6-1 6-3 |
| W | QF | Sebastien Liu Chung Ming | 6-1 6-2 |
| W | SF | Christopher Fok Kow | 6-4 7-5 |
| L | F | Sebastian Nothhaft | 3-6 2-6 |
2019 J3 HARARE
| W | 1R | Andreas Scott | 6-0 6-2 |
| W | 2R | Nikhil Niranjan | 6-1 7-5 |
| L | QF | Sebastian Nothhaft | 3-6 6-7 |
2019 J1 NANJING
| W | 2R | Qiulin Wang | 2-6 7-5 6-4 |
| L | 3R | Wai Yu Kai | 5-7 6-7 |
2019 J4 JAKARTA-2
| W | 2R | Mitsuki Wei Kang Leong | 6-4 6-1 |
| W | 3R | Muhammad Ali Akbar Ramadhani | 6-0 6-1 |
| W | QF | Tzu Li Chang | 6-3 7-5 |
| W | SF | Kabir Hans | 5-7 6-3 6-2 |
| L | F | Guntinun Sootinun-Opart | 4-6 2-6 |
2019 J4 JAKARTA
| W | 1R | Deepender Grewal | 6-0 6-2 |
| W | 2R | Yoshinobu Nakatsuji | 6-0 6-1 |
| W | QF | Uddayvir Singh | 6-2 6-1 |
| L | SF | Cooper White | 4-6 7-6 3-6 |
2019 J3 NEUCHATEL
| W | 1R | Mathias Musil | 7-5 3-6 6-2 |
| L | 2R | Abedallah Shelbayh | 2-6 4-6 |
2019 J3 DERENDINGEN
| L | 1R | Federico Serena | 4-6 1-6 |
2019 J4 TBILISI
| W | 1R | Imran Sibille | 6-2 6-1 |
| W | 2R | Adam Kresina | 6-1 6-1 |
| W | QF | Daniils Snaiders | 7-6 7-5 |
| W | SF | Emir Sendogan | 6-2 7-5 |
| L | F | Saba Purtseladze | 3-6 5-7 |
2019 J4 WINDHOEK
| W | 1R | Rafael Rullan Zarraga | 6-1 6-1 |
| W | 2R | Connor Kruger | 6-0 7-5 |
| W | QF | Luc Koenig | 6-1 6-0 |
| W | SF | Dylan Salton | 6-2 6-4 |
| W | F | Robbie Arends | 6-4 4-1 |
2019 J2 BURGAS
| W | 1R | Mert Ramadan | 6-4 3-6 6-0 |
| L | 2R | Jaime Caldes | 2-6 3-6 |
2019 J4 DOHA-2
| L | 1R | Linus Carlsson Halldin | 4-6 7-6 4-6 |
2019 J4 DOHA
| L | 1R | Rashed Nawaf | 5-7 2-6 |
2019 J3 PRETORIA
| W | 1R | Erich Sullwald | 6-4 6-4 |
| W | 2R | Eytan Michaeli | 6-4 7-6 |
| W | QF | Robbie Arends | 7-6 7-6 |
| W | SF | Niv Zuckerman | 6-2 6-4 |
| W | F | Thando Longwe-Smit | 6-1 3-6 6-3 |
2019 J4 OSLO
| L | 1R | Axel Garcian | 6-1 4-6 3-6 |
2019 J4 OBERENTFELDEN
| W | 1R | Jesse Den Hartog | 7-5 6-4 |
| W | 2R | Julius Kaufmann | 6-3 7-5 |
| L | QF | Samuel Vincent Ruggeri | 4-6 2-6 |
2019 J5 BEERSHEVA
| W | 1R | Yoni Bidny | 6-4 6-1 |
| W | 2R | Noam Cohen | 6-2 6-3 |
| L | QF | Pedro Araujo | 3-6 6-4 1-6 |
2019 J4 TELAVIV
| W | 1R | Tom Saporta | 6-1 7-6 |
| W | 2R | Eytan Michaeli | 6-2 1-6 6-4 |
| L | QF | Niv Zuckerman | 3-6 2-6 |
2019 J4 BELGRADE
| L | 1R | Denislav Prodanov | 1-6 2-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 14549, Number of registered players: 7,577, Number of registered results: 451,713