Stadium: Court 10 Round: 25 Ground: Clay
| ITF - Grodzisk Mazowiecki M25 | 2021/08/05 14:40 | Facundo Diaz Acosta v Maciej Rajski | 6-4,1-6,4-6 |
| ITF - Grodzisk Mazowiecki M25 | 2021/08/04 16:45 | Vojtech Vlkovsky v Maciej Rajski | 0-6,3-6 |
| Polska - National Tour | 2021/07/14 11:50 | Maciej Rajski v Daniel Michalski | 0-6,5-7 |
| Polska - National Tour | 2021/07/12 11:30 | Maciej Rajski v Piotr Galus | 6-1,6-2 |
| Polska - National Tour | 2021/07/10 09:30 | Maciej Rajski v Yann Wojcik | 6-3,6-3 |
| ITF - Wrocław M25 | 2021/06/30 09:30 | Maciej Rajski v Oscar Jose Gutierrez | 3-6,4-6 |
| ITF - Wrocław M25 | 2021/06/29 07:55 | Maciej Rajski v Milos Karol | 6-4,6-4 |
| ITF - Wrocław M25 | 2021/06/28 11:00 | Piotr Grynkowski v Maciej Rajski | 6-7,4-6 |
| ITF - Łódź M15 | 2021/08/16 13:15 | Taiyo Yamanaka v Admir Kalender | 3-6,7-6,10-7 |
| ITF - Łódź M15 | 2021/08/16 09:30 | Taiyo Yamanaka v Dawid Taczala | 6-4,6-3 |
| ITF - Frankfurt am Main M25 | 2021/08/12 11:10 | Taiyo Yamanaka v Mariano Kestelboim | 2-6,2-6 |
| ITF - Frankfurt am Main M25 | 2021/08/11 11:15 | Adrian Oetzbach v Taiyo Yamanaka | 5-7,5-7 |
| ITF - Frankfurt am Main M25 | 2021/08/10 10:30 | Taiyo Yamanaka v Niklas Schell | 6-1,6-2 |
| ITF - Frankfurt am Main M25 | 2021/08/09 14:10 | Milan Welte v Taiyo Yamanaka | 6-7,4-6 |
| ITF - Novi Sad M15 | 2021/08/02 11:00 | Ivailo Keremedchiev v Taiyo Yamanaka | 6-2,6-7,10-6 |
| ITF - Novi Sad M15 | 2021/08/01 11:15 | Luka Kalenic v Taiyo Yamanaka | 0-6,1-6 |