Stadium: Displaymax Court Round: 25 Ground: Clay
| ITF M15 Pescara | 2023/08/09 10:30 | Luciano Carraro v Fnu Nidunjianzan | 4-6,6-4,6-4 |
| ITF M15 Pescara | 2023/08/08 08:00 | Fnu Nidunjianzan v Davide Galoppini | 5-7,6-4,7-5 |
| ITF M15 Xativa | 2023/08/03 15:00 | Fnu Nidunjianzan v Sergio Callejon Hernando | 3-6,3-6 |
| ITF M15 Xativa | 2023/08/02 19:25 | Fnu Nidunjianzan v Ignacio Parisca | 6-1,6-4 |
| ITF M15 Huntsville | 2023/05/28 16:45 | Roberto Cid Subervi v Fnu Nidunjianzan | 5-7,3-6 |
| ITF M15 Huntsville | 2023/05/27 16:00 | Fnu Nidunjianzan v Blaise Bicknell | 2-6,7-6,6-1 |
| ITF M15 Huntsville | 2023/05/25 16:45 | Lorenzo Esquici v Fnu Nidunjianzan | 6-2,4-6,3-6 |
| ITF M15 Huntsville | 2023/05/23 17:00 | Fnu Nidunjianzan v Thai-Son Kwiatkowski | 6-1,3-6,7-5 |
| Challenger Meerbusch | 2023/08/08 09:00 | Tibo Colson v Tom Gentzsch | 6-1,6-4 |
| Challenger Meerbusch | 2023/08/06 16:55 | Tom Gentzsch v Maxime Mora | 5-7,6-4,6-1 |
| ITF M15 Eindhoven | 2023/08/03 14:30 | Sander Jong v Tom Gentzsch | 1-6,6-2,6-3 |
| ITF M15 Eindhoven | 2023/08/02 14:00 | Christian Sigsgaard v Tom Gentzsch | 6-2,4-6,3-6 |
| ITF M15 Eindhoven | 2023/08/01 11:05 | Maciej Rajski v Tom Gentzsch | 4-6,6-4,3-6 |
| ITF M15 Metzingen | 2023/07/25 11:00 | Tom Gentzsch v Gian Luca Tanner | 2-6,4-6 |
| ITF M25 Kassel | 2023/07/12 11:35 | Tom Gentzsch v Aldin Setkic | 4-6,2-6 |
| ITF M25 Marburg | 2023/07/06 10:35 | Alex Rybakov v Tom Gentzsch | 6-7,6-3,6-2 |