Stadium: Hard 21 Round: 62 Ground: Hardcourt outdoor
| ITF - Heraklion M15 | 2023/11/20 07:00 | Sergo Sikharulidze v Thomas Kostka | 0-6,0-6 |
| ITF - Heraklion M25 | 2023/11/12 13:00 | Sergis Kyratzis v Thomas Kostka | 7-6,6-2 |
| ITF - Heraklion M25 | 2023/11/06 07:00 | Thomas Kostka v Adam Heinonen | 6-7,2-6 |
| ITF - Heraklion M25 | 2023/11/05 09:00 | Dario Drebenstedt v Thomas Kostka | 2-6,0-6 |
| ITF - Heraklion M15 | 2023/10/23 10:30 | Thomas Kostka v Andrew Fenty | 5-7,6-4,9-11 |
| ITF - Heraklion M15 | 2023/10/22 09:30 | Thomas Kostka v Ighor Halmenschlager Reis | 6-3,6-1 |
| ITF - Heraklion M15 | 2023/10/18 09:25 | Benjamin Pietri v Thomas Kostka | 6-3,6-2 |
| ITF - Heraklion M15 | 2023/10/16 09:00 | Gian Luca Tanner v Thomas Kostka | 6-3,1-6,8-10 |
| ITF - Heraklion M15 | 2023/11/19 11:15 | Thomas Mathys v Anthony Genov | 0-6,1-6 |
| ITF - Benicarlo | 2023/11/08 12:40 | Javier Barranco Cosano v Anthony Genov | 6-3,6-2 |
| ITF - Benicarlo | 2023/11/06 11:30 | Toprak Avcibasi v Anthony Genov | 7-6,0-6,7-10 |
| ITF - Benicarlo | 2023/11/05 08:30 | Teo Masera v Anthony Genov | 4-6,4-6 |
| ITF - Pazardzhik M25 | 2023/10/05 08:30 | Anthony Genov v Clement Tabur | 2-6,4-6 |
| ITF - Pazardzhik M25 | 2023/10/04 07:00 | Anthony Genov v Vardan Manukyan | 6-3,6-1 |
| ITF - Pazardzhik M25 | 2023/10/02 11:00 | Anthony Genov v Tomi Van den Ham | 6-4,0-6,11-9 |
| ITF - Pazardzhik M25 | 2023/10/02 06:30 | Anthony Genov v Lars Aregger | 6-0,7-6 |