Stadium: MTA05 Round: 62 Ground: Clay
| ITF M15 Tbilisi | 2023/05/02 09:15 | Jacob Bradshaw v Alexander Donski | 7-6,6-2 |
| ITF M25 Tbilisi | 2023/04/27 06:00 | Adam Walton v Alexander Donski | 6-1,6-2 |
| ITF M25 Tbilisi | 2023/04/26 06:00 | Maxim Zhukov v Alexander Donski | 6-1,2-6,4-6 |
| ITF M15 Lons-le-Saunier | 2023/04/04 10:00 | Alexis Gautier v Alexander Donski | 6-4,6-3 |
| ITF M25 Saint Dizier | 2023/03/30 09:00 | Alexander Donski v Tim Handel | 6-7,3-6 |
| ITF M25 Saint Dizier | 2023/03/29 08:00 | Arthur Bouquier v Alexander Donski | 4-6,6-2,6-7 |
| Challenger St Brieuc | 2023/03/19 17:25 | Luca Castelnuovo v Alexander Donski | 6-7,6-3,6-3 |
| ITF M15 Monastir | 2023/03/01 11:20 | Alexander Donski v Jie Cui | 4-6,5-7 |
| ITF M15 Antalya | 2023/04/30 07:00 | Lorenzo Joaquin Rodriguez v Collin Altamirano | 6-1,4-6,11-9 |
| ITF M15 Naples | 2023/02/21 14:30 | Collin Altamirano v Bryce Nakashima | 3-6,3-6 |
| ITF M15 Naples | 2023/02/20 17:00 | Kousuke Ogura v Collin Altamirano | 2-6,3-6 |
| ITF M15 Edmond | 2023/01/25 22:15 | Ezekiel Clark v Collin Altamirano | 6-0,4-6,6-2 |
| ITF M15 Ithaca | 2023/01/17 18:30 | Nathan Ponwith v Collin Altamirano | 6-4,6-1 |
| ITF M25 Nottingham | 2022/05/10 09:00 | Julian Cash v Collin Altamirano | 6-7,6-2,7-6 |
| ITF M25 Nottingham | 2022/05/04 14:10 | Collin Altamirano v Giovanni Oradini | 3-6,1-6 |
| ITF M15 Orange Park | 2022/04/20 14:00 | Martin Damm v Collin Altamirano | 6-4,7-6 |