| ITF M15 Castelo Branco | 2021/07/25 14:00 | Antonio Prat v Ying Hou | 6-3,6-2 |
| ITF M25 Idanha-A-Nova | 2021/07/19 10:40 | Ying Hou v Tom Pisane | 2-6,6-7 |
| ITF M25 Idanha-A-Nova | 2021/07/18 13:00 | Ying Hou v Bruno Ouvidor | 6-4,6-4 |
| ITF M25 Idanha-A-Nova | 2021/07/11 15:30 | Garrett Johns v Ying Hou | 6-2,6-1 |
| ITF M25 Santo Domingo | 2021/06/07 16:30 | Ronan Jachuck v Ying Hou | 6-0,6-1 |
| ITF M25 Santo Domingo | 2021/06/06 15:00 | Ying Hou v Danail Banov | 6-3,6-2 |
| ITF M25 Santo Domingo | 2021/05/31 15:30 | Ying Hou v Ronan Jachuck | 1-6,1-6 |
| ITF M15 Antalya | 2020/12/22 06:30 | Pavle Daljev v Ying Hou | 6-3,6-2 |