| ITF M15 Antalya | 2023/03/21 07:00 | Elio Jose Ribeiro Lago v Mihai Razvan Marinescu | 7-5,7-6 |
| ITF M15 Antalya | 2023/03/20 10:30 | Joris Hoogland v Mihai Razvan Marinescu | 1-6,3-6 |
| ITF M15 Antalya | 2023/03/19 07:00 | Artem Cherepin v Mihai Razvan Marinescu | 3-6,4-6 |
| ITF M15 Antalya | 2023/03/12 10:30 | Giammarco Gandolfi v Mihai Razvan Marinescu | 6-1,6-3 |
| ITF M15 Antalya | 2023/03/06 11:15 | Matteo De Vincentis v Mihai Razvan Marinescu | 7-6,2-6,10-7 |
| ITF M15 Antalya | 2023/03/05 06:30 | Stefan A Andreescu v Mihai Razvan Marinescu | 3-6,4-6 |
| UTR Pro Dubai | 2023/02/12 05:00 | Mihai Razvan Marinescu v Benedikt Henning | 6-3,5-7,2-6 |
| UTR Pro Dubai | 2023/02/11 07:00 | Mihai Razvan Marinescu v Michalis Sakellaridis | 6-0,6-4 |
| UTR Pro Florida | 2023/04/02 13:00 | Azariah Rusher v Jakub Ostajewski | 3-6,6-7 |
| UTR Pro Copenhagen | 2023/02/18 07:00 | Jakub Ostajewski v Cornelius Alexander Shalmi | 2-6,4-6 |
| UTR Pro Copenhagen | 2023/02/17 08:30 | Hugo Pierre v Jakub Ostajewski | 6-0,6-0 |
| UTR Pro Copenhagen | 2023/02/16 12:00 | Igor Skoric v Jakub Ostajewski | 1-6,1-6 |
| UTR Pro Copenhagen | 2023/02/15 07:00 | Wadym Konowczuk v Jakub Ostajewski | 4-6,1-6 |
| UTR Pro Copenhagen | 2023/02/13 12:45 | Ivan Sodan v Jakub Ostajewski | 6-3,7-6 |
| ITF M15 Palm Coast | 2023/02/06 16:30 | Jakub Ostajewski v Benjamin Denis Alarcon | 4-6,3-6 |
| ITF M25 Wesley Chapel | 2023/01/23 14:45 | Thomas Brown v Jakub Ostajewski | 6-3,6-1 |