Stadium: Court 2 Round: 54 Ground: Hardcourt indoor
| ITF M15 Helsinki | 2021/05/31 08:30 | Matvey Minin v Hermanni Tiainen | 7-6,6-1 |
| ITF M15 Kouvola | 2021/05/26 07:40 | Hermanni Tiainen v Aleksi Lofman | 6-2,3-6,4-6 |
| ITF M15 Pajulahti | 2019/09/16 10:30 | Egor Noskin v Hermanni Tiainen | 4-6,6-2,10-2 |
| ITF M15 Helsinki | 2019/08/19 11:45 | Mateusz Terczynski v Hermanni Tiainen | 6-2,6-2 |
| ITF Finland F4 | 2018/11/10 13:30 | Matvey Khomentovskiy v Hermanni Tiainen | 6-3,6-4 |
| ITF Estonia F3 | 2018/11/03 08:00 | Hermanni Tiainen v Philipp Klimov | 4-6,0-6 |
| ITF Estonia F2 | 2018/10/27 08:00 | Rihards Emulins v Hermanni Tiainen | 6-1,6-1 |
| ITF Finland F3 | 2018/08/11 12:00 | Peter Sillanpaa v Hermanni Tiainen | 6-3,6-3 |
| 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 |