Stadium: Court 15 Round: 44 Ground: Hardcourt outdoor
| 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 |
| ITF M25 Grasse | 2022/06/12 12:55 | Yann Marti v Thomas Kostka | 6-2,6-2 |
| ITF M15 Ithaca | 2023/10/05 16:10 | Andrew Fenty v Radu Mihai Papoe | 3-6,1-6 |
| ITF M15 Ithaca | 2023/10/04 18:05 | Alexander Frusina v Andrew Fenty | 4-6,5-7 |
| ITF M15 Ithaca | 2023/10/03 14:00 | Andrew Fenty v Muhammad Dossani | 6-1,6-2 |
| ITF M15 Ithaca | 2023/10/02 14:00 | Andrew Fenty v Stefan Cooper | 6-3,6-2 |
| ITF M15 Albuquerque | 2023/09/27 21:30 | Andrew Fenty v Fons Van Sambeek | 3-6,4-6 |
| ITF M15 Albuquerque | 2023/09/26 14:00 | Evan Bynoe v Andrew Fenty | 3-6,2-6 |
| ITF M15 Champaign | 2023/09/12 20:30 | Hunter Heck v Andrew Fenty | 7-5,7-6 |
| Challenger Winnipeg | 2023/08/14 16:00 | Ulises Blanch v Andrew Fenty | 6-3,1-6,6-4 |