Stadium: Court 5 Round: 25 Ground: Clay
| ITF M25 Brasov | 2023/07/05 11:15 | David Poljak v Mihai Razvan Marinescu | 2-6,6-1,6-4 |
| ITF M25 Brasov | 2023/07/03 10:20 | Mihai Razvan Marinescu v Benedikt Henning | 6-3,6-2 |
| ITF M15 Cluj Napoca | 2023/06/20 08:20 | Giovanni Calvano v Mihai Razvan Marinescu | 6-3,6-2 |
| ITF M15 Cluj Napoca | 2023/06/19 08:30 | Mihai Razvan Marinescu v Vladimir Filip | 6-2,6-1 |
| ITF M15 Cluj Napoca | 2023/06/18 09:00 | Mihai Razvan Marinescu v Andrei Cuceu | 6-1,6-3 |
| ITF M15 Constanta | 2023/05/31 07:00 | Antonio Caruso v Mihai Razvan Marinescu | 6-1,6-3 |
| ITF M15 Constanta | 2023/05/30 07:00 | Mihai Razvan Marinescu v Yurii Dzhavakian | 6-3,6-4 |
| ITF M15 Constanta | 2023/05/29 08:00 | Mihai Razvan Marinescu v Razvan M Codescu | 6-0,6-3 |
| Challenger Amersfoort | 2023/07/17 09:00 | Tibo Colson v Denis Klok | 6-4,6-2 |
| Challenger Amersfoort | 2023/07/16 10:50 | Denis Klok v Hady Habib | 3-6,7-5,6-1 |
| ITF M15 Sofia | 2023/07/08 09:35 | Goncalo Oliveira v Denis Klok | 6-3,6-4 |
| ITF M15 Sofia | 2023/07/06 08:10 | Adam Heinonen v Denis Klok | 1-6,1-6 |
| ITF M15 Sofia | 2023/07/04 09:40 | Gabriel Donev v Denis Klok | 5-7,1-6 |
| ITF M15 Belgrade | 2023/06/29 06:50 | Denis Klok v Ergi Kirkin | 6-7,3-6 |
| ITF M15 Tehran | 2023/06/18 12:30 | Denis Klok v Erik Arutiunian | 6-2,6-1 |
| ITF M15 Tehran | 2023/06/16 08:00 | Denis Klok v Grigoriy Lomakin | 6-1,6-2 |