Stadium: Hard Court 3 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Heraklion | 2023/10/30 09:30 | Dax Donders v Dario Drebenstedt | 6-1,6-2 |
| ITF M25 Heraklion | 2023/10/29 10:30 | Dario Drebenstedt v Francesco Cano | 6-3,6-3 |
| ITF M15 Allershausen | 2023/08/30 08:00 | Dario Drebenstedt v Jannik Maute | 2-6,2-6 |
| ITF M15 Allershausen | 2023/08/29 08:30 | Mike Loccisano v Dario Drebenstedt | 6-7,3-6 |
| ITF M15 Trier | 2023/08/21 09:30 | Dario Drebenstedt v Kevin Humpfner | 1-6,0-6 |
| ITF M15 Uberlingen | 2023/08/14 08:00 | Taym Alazmeh v Dario Drebenstedt | 6-3,6-0 |
| ITF M25 Antalya | 2023/02/05 07:00 | Dario Drebenstedt v Alexander Chepik | 5-7,7-6,10-8 |
| ITF M25 Antalya | 2023/01/29 07:30 | Dario Drebenstedt v Lucca Pinto | 3-6,0-6 |
| ITF M15 Heraklion | 2023/10/23 10:30 | Thomas Kostka v Andrew Fenty | 5-7,6-4,9-11 |
| ITF M15 Heraklion | 2023/10/22 09:30 | Thomas Kostka v Ighor Halmenschlager Reis | 6-3,6-1 |
| ITF M15 Heraklion | 2023/10/18 09:25 | Benjamin Pietri v Thomas Kostka | 6-3,6-2 |
| ITF M15 Heraklion | 2023/10/16 09:00 | Gian Luca Tanner v Thomas Kostka | 6-3,1-6,8-10 |
| ITF M15 Heraklion | 2023/10/15 08:30 | Evangelos Kypriotis v Thomas Kostka | 2-6,1-6 |
| ITF M25 Grasse | 2023/06/11 08:30 | Theo Herrmann v Thomas Kostka | 6-2,6-4 |
| ITF M15 Monastir | 2023/03/13 15:00 | Thomas Kostka v Zoran Ludoski | 3-6,2-6 |
| ITF M15 Monastir | 2023/03/13 08:30 | Linang Xiao v Thomas Kostka | 4-6,7-5,7-10 |