Stadium: Court 1 Round: 26 Ground: Clay
| ITF M15 Antalya | 2023/04/20 07:00 | Dan Alexandru Tomescu v Johannes Haerteis | 1-6,6-4,2-6 |
| ITF M15 Pazardzhik | 2023/05/16 08:00 | Nicolas Buitrago v Dan Alexandru Tomescu | 6-4,6-7,7-6 |
| ITF M15 Kursumlijska Banja | 2023/04/26 08:00 | Dan Alexandru Tomescu v Sergei Pogosian | 4-6,2-6 |
| ITF M15 Antalya | 2023/04/20 07:00 | Dan Alexandru Tomescu v Johannes Haerteis | 1-6,6-4,2-6 |
| ITF M15 Antalya | 2023/04/18 11:10 | Davide Galoppini v Dan Alexandru Tomescu | 6-2,3-6,1-6 |
| ITF M15 Antalya | 2023/04/12 11:35 | Michel Hopp v Dan Alexandru Tomescu | 4-6,7-5,6-1 |
| ITF M15 Kish Island | 2023/03/14 10:00 | Samir Hamza Reguig v Dan Alexandru Tomescu | 6-4,6-2 |
| ITF M15 Kish Island | 2023/03/12 06:30 | Dan Alexandru Tomescu v Hazem Naw | 7-6,6-4 |
| ITF M15 Kish Island | 2023/03/11 06:30 | Gergely Madarasz v Dan Alexandru Tomescu | 4-6,2-6 |
| Challenger Prague Qual | 2023/05/07 12:55 | Vitaliy Sachko v Johannes Haerteis | 5-7,6-2,6-1 |
| ITF M25 Sanxenxo | 2023/04/28 13:00 | Robert Strombachs v Johannes Haerteis | 7-6,6-4 |
| ITF M25 Sanxenxo | 2023/04/27 12:30 | Johannes Haerteis v Tao Mu | 6-4,6-1 |
| ITF M25 Sanxenxo | 2023/04/26 10:00 | Johannes Haerteis v Grigory Kuklin | 6-1,6-0 |
| ITF M15 Antalya | 2023/04/21 07:30 | Dragos Nicolae Madaras v Johannes Haerteis | 6-2,6-2 |
| ITF M15 Antalya | 2023/04/20 07:00 | Dan Alexandru Tomescu v Johannes Haerteis | 1-6,6-4,2-6 |
| ITF M15 Antalya | 2023/04/18 09:50 | Johannes Haerteis v Arthur Reymond | 6-4,6-2 |
| ITF M15 Antalya | 2023/04/12 07:00 | Daniele Capecchi v Johannes Haerteis | 4-6,6-3,6-2 |