Stadium: Central Court (8) Round: 26 Ground: Clay
| ITF M25 - Grodzisk Mazowiecki | 2021/08/03 10:30 | Facundo Diaz Acosta v Yann Wojcik | 6-3,7-6 |
| ITF M25 Denia | 2021/07/28 14:00 | Facundo Diaz Acosta v Alejandro Gonzalez | 4-6,7-6,3-6 |
| Challenger - Todi | 2021/07/12 18:30 | Pedro Cachin v Facundo Diaz Acosta | 6-3,6-4 |
| Challenger Braunschweig | 2021/07/04 11:10 | Mats Rosenkranz v Facundo Diaz Acosta | 3-6,7-6,7-6 |
| ITF - M25 Most | 2021/05/29 08:30 | Facundo Diaz Acosta v Franco Agamenone | 4-6,3-6 |
| ITF - M25 Most | 2021/05/27 10:25 | Antoine Escoffier v Facundo Diaz Acosta | 7-5,3-6,3-6 |
| ITF - M25 Most | 2021/05/25 11:50 | Jiri Krouzek v Facundo Diaz Acosta | 4-6,3-6 |
| ITF - M25 Jablonec nad Nisou | 2021/05/20 08:00 | Facundo Diaz Acosta v Franco Agamenone | 3-6,7-6,6-7 |
| ITF M25 - Grodzisk Mazowiecki | 2021/08/04 16:45 | Vojtech Vlkovsky v Maciej Rajski | 0-6,3-6 |
| Polish National Tour | 2021/07/14 11:50 | Maciej Rajski v Daniel Michalski | 0-6,5-7 |
| Polish National Tour | 2021/07/12 11:30 | Maciej Rajski v Piotr Galus | 6-1,6-2 |
| Polish National Tour | 2021/07/10 09:30 | Maciej Rajski v Yann Wojcik | 6-3,6-3 |
| ITF M25 - Wrocław | 2021/06/30 09:30 | Maciej Rajski v Oscar Jose Gutierrez | 3-6,4-6 |
| ITF M25 - Wrocław | 2021/06/29 07:55 | Maciej Rajski v Milos Karol | 6-4,6-4 |
| ITF M25 - Wrocław | 2021/06/28 11:00 | Piotr Grynkowski v Maciej Rajski | 6-7,4-6 |
| ITF M25 - Wrocław | 2021/06/27 15:30 | Jeremy Schifris v Maciej Rajski | 1-6,2-6 |