Estadio: Court 8 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Constanta | 2023/09/04 07:00 | Mihai Razvan Marinescu v Alexandru Cristian Dumitru | 6-1,6-2 |
| ITF M15 Constanta | 2023/09/03 06:00 | David Gabor v Alexandru Cristian Dumitru | 1-6,4-6 |
| ITF M15 Bucarest | 2023/08/30 12:15 | Vlad Andrei Dancu v Alexandru Cristian Dumitru | 6-3,6-2 |
| ITF M15 Targu Jiu | 2023/08/13 09:00 | Facundo Bermejo v Alexandru Cristian Dumitru | 6-2,5-7,10-2 |
| ITF M15 Curtea de Arges | 2023/08/06 14:00 | Tudor S Gheorghita v Alexandru Cristian Dumitru | 3-6,6-4,10-7 |
| ITF M25 Bacau | 2023/07/24 07:00 | Matei Cristian Onofrei v Alexandru Cristian Dumitru | 6-1,4-6,10-5 |
| ITF M25 Bacau | 2023/07/23 06:30 | Alexandru Cristian Dumitru v Samuil Konov | 7-5,6-2 |
| ITF M25 Brasov | 2023/07/02 06:30 | Peter Goldsteiner v Alexandru Cristian Dumitru | 6-0,6-3 |
| ITF M15 Doha | 2023/10/03 14:20 | Pablo Trochu v Alexey Shtengelov | 6-2,6-0 |
| ITF M15 Doha | 2023/10/02 12:00 | Siddarth Madhavan v Alexey Shtengelov | 3-6,2-6 |
| ITF M25 Darwin | 2023/09/17 06:30 | Rhys Xavier v Alexey Shtengelov | 7-6,6-3 |
| ITF M15 Nakhon Si Thammarat | 2023/09/04 04:10 | Seon Yong Han v Alexey Shtengelov | 6-2,6-2 |
| UTR Pro Carrara | 2023/08/16 00:00 | Jayden Lewindon v Alexey Shtengelov | 7-6,6-1 |
| UTR Pro Carrara | 2023/08/14 02:00 | Sam Oster v Alexey Shtengelov | 7-5,6-0 |
| ITF M15 Caloundra | 2023/07/30 00:00 | Patrick Fitzgerald v Alexey Shtengelov | 6-4,6-4 |
| ITF M15 Casablanca | 2023/06/26 13:30 | Enrique Bogo v Alexey Shtengelov | 6-0,6-2 |