Stadium: Court 5 Round: 25 Ground: Hardcourt indoor
| ITF M25 - Jönköping | 2021/09/21 08:55 | Oscar Moraing v Michal Dembek | 6-4,6-4 |
| ITF M25 - Plaisir | 2021/09/16 11:45 | Michal Dembek v Antoine Bellier | 2-6,6-7 |
| ITF M25 - Plaisir | 2021/09/15 10:55 | Liova Ajavon v Michal Dembek | 0-6,6-7 |
| ITF M15 - Lodz | 2021/08/19 10:00 | Maciej Rajski v Michal Dembek | 7-6,6-2 |
| ITF M15 - Lodz | 2021/08/17 08:00 | Jasza Szajrych v Michal Dembek | 0-6,6-7 |
| ITF M15 - Gdynia | 2021/08/12 10:30 | Daniel Michalski v Michal Dembek | 7-6,4-6,6-3 |
| ITF M15 - Gdynia | 2021/08/11 10:25 | Michal Dembek v Pawel Safuryn | 6-0,6-1 |
| ITF M25 - Grodzisk Mazowiecki | 2021/08/07 07:25 | David Poljak v Michal Dembek | 6-3,3-6,6-3 |
| Challenger Columbus | 2021/09/19 14:00 | Gijs Brouwer v Yusuke Takahashi | 6-1,7-6 |
| ITF M25 - Decatur | 2021/08/05 15:00 | Yusuke Takahashi v Gijs Brouwer | 1-6,0-6 |
| ITF M25 - Decatur | 2021/08/04 16:25 | Rinky Hijikata v Yusuke Takahashi | 2-6,6-7 |
| ITF M25 - Champaign | 2021/07/29 19:05 | Naoki Nakagawa v Yusuke Takahashi | 6-3,6-4 |
| ITF M25 - Champaign | 2021/07/28 21:15 | Yusuke Takahashi v Sekou Bangoura | 7-5,6-3 |
| ITF M25 - Idanha-A-Nova | 2021/07/22 11:05 | Yusuke Takahashi v Alejandro Moro Canas | 6-4,6-7,2-6 |
| ITF M25 - Idanha-A-Nova | 2021/07/21 08:00 | Yusuke Takahashi v Ben Jones | 6-4,6-4 |
| ITF M25 - Idanha-A-Nova | 2021/07/13 12:30 | Joao Lucas Reis da Silva v Yusuke Takahashi | 6-3,6-1 |