Stadium: Court 4 Round: 26 Ground: Clay
| ITF M15 Antalya | 2023/11/28 10:40 | Matthias Ujvary v Mert Alkaya | 6-4,3-6,0-6 |
| ITF M25 Antalya | 2023/11/22 09:00 | Mert Alkaya v Matthias Ujvary | 2-6,1-6 |
| ITF M25 Antalya | 2023/11/21 10:05 | Mert Alkaya v Samyar Elyasi | 6-4,6-3 |
| ITF M15 Antalya | 2023/11/05 07:00 | Maximilian Figl v Mert Alkaya | 3-6,4-6 |
| ITF M15 Monastir | 2023/10/09 14:30 | Romain Faucon v Mert Alkaya | 7-6,6-7,11-9 |
| ITF M15 Monastir | 2023/10/08 12:00 | Arthur Laborde v Mert Alkaya | 1-6,4-6 |
| ITF M15 Chieti | 2023/06/12 07:30 | Mert Alkaya v Giammarco Gandolfi | 6-3,5-7,5-10 |
| ITF M15 Chieti | 2023/06/11 07:00 | Mert Alkaya v Nicolo Toffanin | 6-3,3-6,10-7 |
| ITF M15 Antalya | 2023/11/29 06:15 | Oscar Galimardanov v Joao Eduardo Schiessl | 7-6,6-7,5-7 |
| Challenger Curitiba | 2023/10/23 14:55 | Mateus Alves v Joao Eduardo Schiessl | 7-6,6-7,6-2 |
| ITF M25 Lajeado | 2023/10/13 13:00 | Eduardo Ribeiro v Joao Eduardo Schiessl | 6-2,6-3 |
| ITF M25 Lajeado | 2023/10/10 17:20 | Joao Eduardo Schiessl v Rafael Tosetto | 6-3,4-6,6-4 |
| Challenger Campinas | 2023/10/01 17:25 | Joao Eduardo Schiessl v Wilson Leite | 3-6,6-2,4-6 |
| ITF M25 Lujan | 2023/09/26 15:15 | Joao Eduardo Schiessl v Gonzalo Bueno | 6-4,6-7,3-6 |
| ITF M25 Lujan | 2023/09/25 17:15 | Joao Eduardo Schiessl v Gonzalo Zeitune | 6-2,7-5 |
| ITF M25 Lujan | 2023/09/24 17:00 | Joao Eduardo Schiessl v Rocco Valente | 6-1,7-5 |