Stadium: Court 3 Round: 54 Ground: Clay
| ITF M25 Bagneres-De-Bigorre | 2021/08/29 11:10 | Max Cunat v Ying Hou | 6-3,6-2 |
| 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 M25 Prostejov | 2021/08/17 07:55 | Dominik Recek v Daniel Paty | 3-6,7-6,4-6 |
| ITF M15 Gdynia | 2021/08/09 08:00 | Julius Tverijonas v Dominik Recek | 6-1,6-2 |
| ITF M15 Gdynia | 2021/08/08 08:00 | Dominik Recek v Kamil Gajewski | 6-2,7-6 |
| ITF M25 Wetzlar | 2021/08/03 08:55 | Gabriel Alejandro Hidalgo v Dominik Recek | 6-2,6-3 |
| ITF M25 Wetzlar | 2021/08/02 10:10 | Joel Vincent Link v Dominik Recek | 0-6,4-6 |
| ITF M25 Marburg | 2021/07/07 09:00 | Tim Handel v Dominik Recek | 2-6,6-4,6-4 |
| ITF M25 Marburg | 2021/07/06 15:25 | Amaury Raynel v Dominik Recek | 4-6,4-6 |
| ITF M25 Marburg | 2021/07/05 13:55 | Dominik Recek v Karlo Cubelic | 6-4,6-2 |