Stadium: Indoor 12 Ground: Hardcourt outdoor
| Challenger Zhangjiagang | 2023/08/27 02:00 | Evgeny Karlovskiy v Matthew Romios | 2-6,4-6 |
| Challenger Trieste | 2023/07/16 10:00 | Carlos Sanchez Jover v Matthew Romios | 6-4,6-2 |
| Challenger Salzburg | 2023/07/09 10:00 | Maxime Chazal v Matthew Romios | 6-4,6-2 |
| ITF M25 Poprad | 2023/06/23 08:00 | Matthew Romios v Toby Alex Kodat | 2-6,4-6 |
| ITF M25 Poprad | 2023/06/22 10:05 | Lukas Neumayer v Matthew Romios | 6-4,1-6,6-7 |
| ITF M25 Poprad | 2023/06/20 08:00 | Matthew Romios v Filip Apltauer | 7-6,6-2 |
| ITF M25 Jakarta | 2023/04/26 03:40 | Matthew Romios v Andrew Rogers | 5-7,6-2,6-7 |
| ITF M25 Jakarta | 2023/04/25 02:00 | Matthew Romios v Bharath Nishok Kumaran | 6-4,6-0 |
| Challenger Zhangjiagang | 2023/08/27 03:30 | Leonid Sheyngezikht v Xiaofei Wang | 6-4,6-3 |
| ITF M25 Tainan | 2023/08/22 02:00 | Naoki Tajima v Leonid Sheyngezikht | 3-6,5-7 |
| ITF M25 Tainan | 2023/08/16 06:05 | Leonid Sheyngezikht v Chen-Yu Lu | 6-2,4-6,3-6 |
| ITF M15 Hyvinkaa | 2023/08/03 10:10 | Karl Friberg v Leonid Sheyngezikht | 6-2,7-6 |
| Challenger Astana | 2023/07/23 09:15 | Sidharth Rawat v Leonid Sheyngezikht | 6-2,6-2 |
| ITF M25 Arlon | 2023/06/28 14:55 | Leonid Sheyngezikht v Tibo Colson | 0-6,0-6 |
| ITF M25 Arlon | 2023/06/27 11:00 | Leonid Sheyngezikht v Thorben Sannen | 6-3,6-2 |
| ITF M25 Arlon | 2023/06/26 16:15 | Leonid Sheyngezikht v Mihaita Daniel Damian | 6-1,6-0 |