Stadium: Court 4 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Uslar | 2023/07/17 10:30 | John Sperle v Lukas Janousek | 6-0,6-4 |
| ITF M15 Kamen | 2023/06/26 14:00 | Ruben Hartig v Lukas Janousek | 6-4,6-1 |
| ITF M15 Kamen | 2023/06/26 10:00 | Lukas Janousek v Luca Hesselmann | 6-4,6-3 |
| ITF M25 Jablonec Nad Nisou | 2023/05/30 09:30 | Matthew William Donald v Lukas Janousek | 6-0,6-2 |
| ITF M25 Jablonec Nad Nisou | 2023/05/29 10:30 | Lukas Janousek v Filip Apltauer | 7-5,2-6,12-10 |
| ITF M25 Most | 2023/05/23 09:50 | Michael Agwi v Lukas Janousek | 6-1,6-3 |
| ITF M25 Most | 2023/05/21 08:00 | Sergo Sikharulidze v Lukas Janousek | 3-6,4-6 |
| ITF M15 Meerbusch | 2023/04/23 10:30 | Quin Verstegen v Lukas Janousek | 4-6,6-4,10-8 |
| ITF M15 Pescara | 2023/08/06 12:00 | Gianluca Di Nicola v Leonardo Borrelli | 6-2,6-3 |
| ITF M15 Bergamo | 2023/06/25 16:55 | Baran Soyler v Leonardo Borrelli | 7-6,7-5 |
| Challenger Bergamo | 2022/10/30 15:25 | Andrea Vavassori v Leonardo Borrelli | 6-1,6-1 |