Stadium: Court 4 Round: 54 Ground: Clay
| ITF M25 - Arlon | 2023/06/28 08:00 | Louis Wessels v John Sperle | 6-1,5-7,6-3 |
| ITF M25 - Arlon | 2023/06/27 08:00 | John Sperle v Leonardo Mileikowsky | 6-2,6-1 |
| ITF M25 - Arlon | 2023/06/26 08:00 | John Sperle v Ilian Borlee | 6-0,6-1 |
| ITF M15 - Saarlouis | 2023/06/19 13:00 | John Sperle v Adam Heinonen | 2-6,6-1,2-10 |
| ITF M15 - Saarlouis | 2023/06/18 12:00 | John Sperle v Laurin Aerne | 6-4,6-2 |
| ITF M15 - Duffel | 2023/06/16 11:00 | Ryan Nijboer v John Sperle | 6-4,4-6,6-3 |
| ITF M15 - Duffel | 2023/06/15 08:00 | John Sperle v Simon Beaupain | 7-6,4-6,7-6 |
| ITF M15 - Duffel | 2023/06/13 08:00 | John Sperle v Alessio Basile | 6-4,6-4 |
| 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 M25 - Trnava | 2023/03/27 13:00 | Lukas Janousek v Piotr Kusiewicz | 4-6,1-6 |