Stadion: Court 5 Round: 26 Ground: Clay
| ITF - M25 - Pardubice | 2021/09/22 08:00 | Alexander Weis v Mikalai Haliak | 7-6,6-4 |
| Challenger - Banja Luka | 2021/09/05 11:05 | Dragos Nicolae Madaras v Alexander Weis | 6-3,6-0 |
| ITF - M25 - Sierre | 2021/09/01 11:35 | Yannik Steinegger v Alexander Weis | 6-7,7-6,6-3 |
| ITF - M25 - Caslano | 2021/08/27 12:35 | Alexander Weis v Calvin Hemery | 2-6,4-6 |
| ITF - M25 - Caslano | 2021/08/26 10:10 | Nicholas David Ionel v Alexander Weis | 3-6,3-6 |
| ITF - M25 - Caslano | 2021/08/25 13:00 | Tristan Schoolkate v Alexander Weis | 4-6,3-6 |
| ITF - M15 - Warmbad-Villach | 2021/08/22 09:00 | Peter Heller v Alexander Weis | 6-3,6-4 |
| ITF - M15 - Warmbad-Villach | 2021/08/20 10:10 | Alexander Weis v Jakob Aichhorn | 6-1,0-6,6-2 |
| ITF - M25 - Pardubice | 2021/09/21 07:55 | Toby Martin v Stepan Pecak | 7-5,7-6 |
| ITF - M25 - Pardubice | 2021/09/20 09:00 | Toby Martin v Liam Schiemann | 6-2,6-0 |
| ITF - M25 - Bacau | 2021/08/19 14:25 | Toby Martin v Arthur Cazaux | 2-6,1-6 |
| ITF - M25 - Bacau | 2021/08/18 08:50 | Toby Martin v Facundo Juarez | 6-4,2-6,7-5 |
| ITF - M25 - Bacau | 2021/08/17 07:00 | Toby Martin v Valentin Vanta | 6-7,6-2,12-10 |
| ITF - M15 - Curtea de Arges | 2021/08/09 07:00 | Gheorghe Claudiu Schinteie v Toby Martin | 6-3,7-5 |
| ITF - M15 - Curtea de Arges | 2021/08/08 06:00 | Felipe Derdoy v Toby Martin | 2-6,4-6 |
| ITF - M25 - Pitesti | 2021/08/04 07:30 | Toby Martin v Vlad Andrei Dancu | 3-6,4-6 |