Stadium: Court 3 Round: 62 Ground: Clay
| ITF M15 Cairo | 2021/12/01 13:35 | Daniil Ostapenkov v Giuseppe Tresca | 3-6,1-6 |
| ITF M15 Cairo | 2021/11/25 10:20 | Duckhee Lee v Daniil Ostapenkov | 6-4,6-3 |
| ITF M15 Cairo | 2021/11/24 07:55 | Daniil Ostapenkov v Tsung-Hao Huang | 6-1,6-0 |
| ITF M15 Sharm El Sheikh | 2021/11/10 14:05 | Saba Purtseladze v Daniil Ostapenkov | 7-6,6-3 |
| ITF M15 Sharm El Sheikh | 2021/11/03 08:00 | Daniil Ostapenkov v Emiliano Maggioli | 6-3,1-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/10/27 08:00 | Karim-Mohamed Maamoun v Daniil Ostapenkov | 7-6,6-0 |
| Davis Cup | 2021/09/19 17:40 | Federico Coria v Daniil Ostapenkov | 6-3,6-1 |
| Davis Cup | 2021/09/18 14:00 | Diego Schwartzman v Daniil Ostapenkov | 4-6,3-6 |
| ITF M25 Rio Cuarto | 2021/12/07 15:15 | Lucio Carnevalle v Alan Postay | 7-5,6-3 |
| ITF M25 Rio Cuarto | 2021/12/06 16:30 | Santiago Giamichelle v Alan Postay | 6-3,6-7,4-10 |
| ITF M25 Rio Cuarto | 2021/12/05 16:30 | Mateo Branc v Alan Postay | 2-6,1-6 |
| ITF M25 Villa Allende | 2021/11/28 17:30 | Alan Postay v Luciano Emanuel Ambrogi | 6-3,6-4 |
| ITF M15 Cordoba | 2021/11/24 14:00 | Alan Postay v Mateo Del Pino | 3-6,4-6 |
| ITF M15 Cordoba | 2021/11/23 13:00 | Alan Postay v Santiago Franchini | 6-0,6-4 |
| ITF M15 Cordoba | 2021/11/21 12:00 | Alan Postay v Facundo Elias Hanni | 6-2,6-1 |
| ITF M15 Platja D'Aro | 2021/10/10 11:00 | Bruno P Navarro v Alan Postay | 6-7,6-1,10-5 |