Stadion: Center Court Round: 26 Ground: Clay
| Challenger - Tampere | 2023/07/19 10:55 | Sumit Nagal v Jiri Vesely | 6-4,6-1 |
| Challenger - Salzburg | 2023/07/10 13:00 | Sumit Nagal v Lukas Neumayer | 4-6,6-7 |
| Challenger - Posen | 2023/06/21 11:20 | Facundo Diaz Acosta v Sumit Nagal | 6-1,2-6,6-4 |
| Challenger - Posen | 2023/06/20 11:15 | Sumit Nagal v Leo Borg | 6-2,6-3 |
| Challenger - Bratislava | 2023/06/12 15:30 | Zsombor Piros v Sumit Nagal | 6-2,7-5 |
| Challenger - Troisdorf | 2023/06/03 12:30 | Sumit Nagal v Frederico Ferreira Silva | 2-6,6-3,4-6 |
| Challenger - Troisdorf | 2023/06/02 10:30 | Oleksii Krutykh v Sumit Nagal | 1-6,6-1,4-6 |
| Challenger - Troisdorf | 2023/05/30 12:45 | Dimitar Kuzmanov v Sumit Nagal | 3-6,6-1,5-7 |
| Challenger - Tampere | 2023/07/18 12:00 | Joao Lucas Reis da Silva v Benjamin Hassan | 5-7,6-4,6-3 |
| Challenger - Medellin | 2023/06/27 16:30 | Joao Lucas Reis da Silva v Benjamin Lock | 3-6,1-6 |
| Challenger - Cali | 2023/06/19 22:25 | Joao Lucas Reis da Silva v Gerald Melzer | 3-6,6-3,3-6 |
| Challenger - Palmas del Mar | 2023/06/14 15:00 | Joao Lucas Reis da Silva v Alexis Galarneau | 6-7,0-6 |
| Challenger - Palmas del Mar | 2023/06/12 20:35 | Denis Yevseyev v Joao Lucas Reis da Silva | 7-5,4-6,5-7 |
| Challenger - Tyler | 2023/06/05 20:40 | Joao Lucas Reis da Silva v Adam Neff | 6-4,2-6,3-6 |
| Challenger - Little Rock | 2023/06/01 18:40 | Joao Lucas Reis da Silva v Adam Walton | 6-3,6-7,4-6 |
| Challenger - Little Rock | 2023/05/30 15:00 | Maks Kasnikowski v Joao Lucas Reis da Silva | 2-6,3-6 |