Stadion: Court 6 Round: 26 Ground: Hardcourt outdoor
| ITF - M15 - Monastir | 2023/11/01 08:00 | Sebastian Sorger v Jan Kupcic | 2-6,4-6 |
| ITF - M15 - Monastir | 2023/10/30 15:45 | Maurus Malgiaritta v Jan Kupcic | 2-6,1-6 |
| ITF - M15 - Monastir | 2023/10/30 08:00 | Stefan Peter Hampe v Jan Kupcic | 5-7,6-7 |
| ITF - M15 - Monastir | 2023/10/29 09:30 | Luka Bojicic Ono v Jan Kupcic | 1-6,2-6 |
| ITF - M15 - Bad Waltersdorf | 2023/10/05 10:55 | Branko Djuric v Jan Kupcic | 6-2,4-6,6-4 |
| ITF - M15 - Bad Waltersdorf | 2023/10/04 09:45 | Jan Kupcic v Peter Heller | 6-3,6-4 |
| ITF - M15 - Bad Waltersdorf | 2023/10/02 08:00 | Jan Kupcic v Josip Simundza | 6-3,6-2 |
| ITF - M15 - Bad Waltersdorf | 2023/10/01 09:00 | Jan Kupcic v Artem Podorozhnyi | 4-6,6-2,10-5 |
| ITF - M15 - Monastir | 2023/10/31 08:00 | Nicolas Tepmahc v John Sperle | 4-6,3-6 |
| Challenger - Hamburg | 2023/10/15 16:00 | Tristan Lamasine v John Sperle | 2-6,6-2,6-0 |
| ITF - M25 - Sabadell | 2023/09/28 08:55 | Ryan Nijboer v John Sperle | 6-3,6-1 |
| ITF - M25 - Sabadell | 2023/09/27 10:15 | John Sperle v Alejandro Juan Mano | 7-5,6-3 |
| ITF - M25 - Sabadell | 2023/09/26 07:55 | John Sperle v Arthur Bonnaud | 6-4,6-3 |
| ITF - M25 - Sabadell | 2023/09/25 07:30 | John Sperle v Jiri Cizek | 6-0,6-0 |
| ITF - M25 - Sabadell | 2023/09/24 07:30 | John Sperle v Carlos Giraldi | 6-0,6-3 |
| ITF - M15 - Buschhausen | 2023/09/12 10:00 | Justin Engel v John Sperle | 6-2,6-3 |