Stadium: Court 2 Round: 54 Ground: Clay
| ITF M15 Alkmaar | 2020/08/25 15:15 | Jacopo Berrettini v Alexander Weis | 7-6,4-6,6-1 |
| ITF M25 Vogau | 2020/08/17 11:30 | Timofey Skatov v Alexander Weis | 7-6,6-3 |
| ITF M25 Vogau | 2020/08/17 09:00 | Vladimir Filip v Alexander Weis | 2-6,4-6 |
| ITF M25 Vogau | 2020/08/16 09:30 | Hans Peter Kaufmann v Alexander Weis | 4-6,1-6 |
| ITF M25 Murcia | 2020/03/05 09:55 | Eduard Esteve Lobato v Alexander Weis | 6-1,6-4 |
| ITF M25 Murcia | 2020/03/03 13:15 | Duje Ajdukovic v Alexander Weis | 5-7,3-6 |
| ITF M15 Paguera | 2020/02/20 09:00 | Alexander Weis v Pedro Vives Marcos | 6-2,3-6,5-7 |
| ITF M15 Paguera | 2020/02/19 14:45 | Ivan Marrero Curbelo v Alexander Weis | 6-3,1-6,0-6 |
| ITF M15 Alkmaar | 2020/08/23 11:00 | Shintaro Mochizuki v Alec Deckers | 6-4,6-4 |
| ITF M15 Eupen | 2019/08/07 15:00 | Zizou Bergs v Alec Deckers | 7-5,6-1 |
| ITF M15 Eupen | 2019/08/06 10:15 | Louis Lechevretel v Alec Deckers | 1-6,4-6 |
| ITF M15 Brussels | 2019/07/29 14:45 | Kody Pearson v Alec Deckers | 6-0,6-1 |
| Challenger Amersfoort | 2019/07/15 11:40 | Alec Deckers v Kenny de Schepper | 3-6,4-6 |
| ITF M15 Den Haag | 2019/07/03 07:30 | Jing L Weng v Alec Deckers | 6-0,0-6,6-3 |
| ITF M15 Den Haag | 2019/07/02 10:30 | Bart Van Den Berg v Alec Deckers | 6-1,6-1 |
| ITF M15 Den Haag | 2019/07/01 10:00 | Joel Vincent Link v Alec Deckers | 2-6,3-6 |