Stadium: Court 16 Round: 27 Ground: Hardcourt indoor
| ITF M25 Marburg | 2021/07/06 16:40 | Alexander Donski v Jeremy Jahn | 6-2,6-2 |
| ITF M15 Monastir | 2021/06/23 08:30 | Alexander Donski v Omni Kumar | 1-6,3-6 |
| ITF M15 Monastir | 2021/06/17 11:40 | Alexander Donski v Luca Giacomini | 3-6,3-6 |
| ITF M15 Monastir | 2021/06/15 08:30 | Lucio Carnevalle v Alexander Donski | 2-6,3-6 |
| ITF M15 Heraklion | 2021/06/10 07:30 | Alexander Donski v Yuki Mochizuki | 3-6,4-6 |
| ITF M15 Heraklion | 2021/06/09 11:50 | Alexander Donski v Daniel Little | 1-6,6-3,6-1 |
| ITF M15 Heraklion | 2021/06/03 06:30 | Alexander Donski v Reese Stalder | 3-6,6-3,4-6 |
| ITF M15 Heraklion | 2021/06/01 08:00 | Alexander Donski v Kelsey Stevenson | 6-3,6-2 |
| ITF M25 Ajaccio | 2021/07/05 08:30 | Nicolas Tepmahc v Alexandre Reco | 6-3,6-2 |
| ITF M25 Ajaccio | 2021/07/04 07:00 | Alexandre Reco v Max Cunat | 6-3,6-4 |
| UTR Pro Tennis Series Barcelona | 2021/06/13 07:00 | Yurii Dzhavakian v Alexandre Reco | 6-2,4-6,6-0 |
| UTR Pro Tennis Series Barcelona | 2021/06/12 07:00 | Alexandre Reco v Jorge Martinez Martinez | 6-1,5-2 |
| UTR Pro Tennis Series Barcelona | 2021/06/11 08:00 | Alexandre Reco v Diego F Flores | 6-1,6-4 |
| UTR Pro Tennis Series Barcelona | 2021/06/09 14:00 | Alexandre Reco v Xavier Gabarro | 6-1,6-3 |
| UTR Pro Tennis Series Barcelona | 2021/06/08 11:30 | Alexandre Reco v Marcelo Zormann | 5-7,1-5 |
| UTR Pro Tennis Series Barcelona | 2021/06/07 08:00 | Kuzey Cekirge v Alexandre Reco | 6-4,4-6,1-5 |