Stadium: Court 8 Round: 44 Ground: Hardcourt outdoor
| ITF - M15 Villena | 2020/11/15 08:30 | Alexander Weis v Colas Sanchez, Alberto | 6-4,6-4 |
| ITF M15 Valldoreix | 2020/11/11 09:00 | Alexander Weis v Bortolotti, Marco | 3-6,6-2,1-6 |
| ITF M15 Valldoreix | 2020/11/10 09:00 | Alexander Weis v Nikolay Nedelchev | 6-3,7-5 |
| ITF M15 Valldoreix | 2020/11/09 09:00 | Alexander Weis v Matas Ortega, Xavi | 6-1,6-3 |
| ITF M15 Valldoreix | 2020/11/08 11:30 | Alexander Weis v Roglan, Albert | 6-2,6-3 |
| ITF M15 Caslano | 2020/08/31 15:25 | Alexander Weis v Alec Deckers | 6-7,4-6 |
| ITF M15 Alkmaar | 2020/08/25 15:15 | Jacopo Berrettini v Alexander Weis | 7-6,4-6,6-1 |
| Vogau, Singles Qualifying M-ITF-AUT-04A | 2020/08/17 11:30 | Timofey Skatov v Alexander Weis | 7-6,6-3 |
| ITF - M15 Villena | 2020/11/15 08:30 | Taiyo Yamanaka v Daniel Rincon | 7-6,6-4 |
| ITF - M15 Monastir | 2020/10/27 13:05 | Colin Sinclair v Taiyo Yamanaka | 7-6,3-6,6-3 |
| ITF - M15 Monastir | 2020/10/26 08:30 | Taiyo Yamanaka v Patrick Zahraj | 6-3,6-4 |
| ITF - M15 Monastir | 2020/10/25 09:00 | Taiyo Yamanaka v Galus, Piotr | 6-3,6-2 |
| ITF - M15 Monastir | 2020/10/18 10:30 | Gregg, Perry v Taiyo Yamanaka | 6-2,7-5 |
| ITF M15 Setubal | 2020/10/05 12:00 | Basso, Andrea v Taiyo Yamanaka | 6-4,4-6,10-3 |
| ITF M15 Setubal | 2020/10/04 10:00 | Taiyo Yamanaka v Illia Stoliar | 7-6,7-6 |
| ITF M25 Porto | 2020/09/28 10:30 | Taiyo Yamanaka v Giovanni Fonio | 4-6,7-6,8-10 |