Stadium: Court 6 Round: 54 Ground: Clay
| ITF M15 Bad Waltersdorf | 2021/08/25 10:30 | Aichhorn, Jakob v Alessandro Pecci | 2-6,6-3,4-6 |
| ITF M15 Warmbad-Villach | 2021/08/20 10:10 | Alexander Weis v Aichhorn, Jakob | 6-1,0-6,6-2 |
| ITF M15 Warmbad-Villach | 2021/08/19 10:15 | Aichhorn, Jakob v Neil Oberleitner | 6-1,4-6,6-4 |
| ITF M15 Warmbad-Villach | 2021/08/18 11:05 | Aichhorn, Jakob v Ignacio Carou | 6-4,6-4 |
| ITF M15 Warmbad-Villach | 2021/08/15 07:00 | Aichhorn, Jakob v Lukas Rohseano | 6-0,6-0 |
| ITF M25 Telfs | 2021/07/13 09:40 | Aichhorn, Jakob v Daniel Paty | 4-6,3-6 |
| ITF M25 Telfs | 2021/07/12 09:10 | Aichhorn, Jakob v Julius Ratt | 6-4,7-6 |
| Challenger Salzburg | 2021/07/06 15:00 | Aichhorn, Jakob v Jiri Lehecka | 4-6,3-6 |
| ITF M25 Trier | 2021/08/23 15:05 | Leopold Zima v Sanchez Martinez, Benito | 6-1,7-5 |
| ITF M25 Trier | 2021/08/23 10:30 | Guenther, Paul-Georg v Sanchez Martinez, Benito | 1-6,4-6 |
| ITF M25 Ueberlingen | 2021/08/18 11:20 | Sanchez Martinez, Benito v Bulitski, Aliaksandr | 3-6,4-6 |
| ITF M25 Ueberlingen | 2021/08/17 08:50 | Sanchez Martinez, Benito v Steinbach, Andre | 6-2,6-2 |
| ITF M25 Ueberlingen | 2021/08/16 09:40 | Sanchez Martinez, Benito v Thibaut Gadilhe | 5-7,6-0,10-5 |
| ITF M25 Frankfurt am Main | 2021/08/11 09:00 | Esteve Lobato, Eduard v Sanchez Martinez, Benito | 6-2,6-3 |
| ITF M25 Frankfurt am Main | 2021/08/10 10:20 | Boehler, Dominik v Sanchez Martinez, Benito | 4-6,6-7 |
| ITF M25 Frankfurt am Main | 2021/08/09 13:50 | Sanchez Martinez, Benito v Hendrik Jebens | 3-6,6-4,10-2 |