Stadium: Court 3 Round: 27 Ground: Clay
| ITF - M15 Girona | 2021/10/21 11:20 | Alexander Weis v Diego A B Sanchez | 6-4,6-4 |
| ITF - M15 Girona | 2021/10/19 09:00 | Alexander Weis v Manish Sureshkumar | 2-6,7-6,6-2 |
| Challenger - Napoli - Calificari | 2021/10/10 14:00 | Alexander Weis v Filip Cristian Jianu | 3-6,6-4,3-6 |
| ITF - M15 Platja d'Aro | 2021/10/05 10:45 | Alexander Weis v Daniel Merida Aguilar | 4-6,3-6 |
| Challenger - Murcia | 2021/09/26 13:30 | Corentin Denolly v Alexander Weis | 4-6,6-1,6-4 |
| ITF - M25 Pardubice | 2021/09/25 09:40 | Henri Squire v Alexander Weis | 6-4,6-1 |
| ITF - M25 Pardubice | 2021/09/23 10:30 | Alexander Weis v Toby Martin | 6-7,6-3,6-2 |
| ITF - M25 Pardubice | 2021/09/22 08:00 | Alexander Weis v Mikalai Haliak | 7-6,6-4 |
| ITF - M15 Girona | 2021/10/21 08:00 | Enzo Wallart v Yan Bondarevskiy | 2-6,6-2,6-7 |
| ITF - M15 Girona | 2021/10/19 11:40 | Daniel Merida Aguilar v Yan Bondarevskiy | 4-6,3-6 |
| ITF - M15 Sozopol | 2021/10/17 08:10 | Billy Harris v Yan Bondarevskiy | 2-6,3-6 |
| ITF - M15 Sozopol | 2021/10/16 09:30 | Yan Bondarevskiy v Andrew Paulson | 6-4,6-4 |
| ITF - M15 Sozopol | 2021/10/15 09:00 | Hazem Naw v Yan Bondarevskiy | 3-6,2-6 |
| ITF - M15 Sozopol | 2021/10/14 15:45 | Yanaki Milev v Yan Bondarevskiy | 3-6,4-6 |
| ITF - M15 Sozopol | 2021/10/13 15:10 | Stefan Palosi v Yan Bondarevskiy | 4-6,6-2,8-10 |
| ITF - M15 Sozopol | 2021/10/09 07:00 | Billy Harris v Yan Bondarevskiy | 6-3,3-6,7-6 |