Stadium: Court 9 Round: 62 Ground: Clay
| ITF M25 Frankfurt am Main | 2021/08/12 11:10 | Taiyo Yamanaka v Mariano Kestelboim | 2-6,2-6 |
| ITF M25 Frankfurt am Main | 2021/08/11 11:15 | Adrian Oetzbach v Taiyo Yamanaka | 5-7,5-7 |
| ITF M25 Frankfurt am Main | 2021/08/10 10:30 | Taiyo Yamanaka v Niklas Schell | 6-1,6-2 |
| ITF M25 Frankfurt am Main | 2021/08/09 14:10 | Milan Welte v Taiyo Yamanaka | 6-7,4-6 |
| ITF M15 Novi Sad | 2021/08/02 11:00 | Ivailo Keremedchiev v Taiyo Yamanaka | 6-2,6-7,10-6 |
| ITF M15 Novi Sad | 2021/08/01 11:15 | Luka Kalenic v Taiyo Yamanaka | 0-6,1-6 |
| ITF M15 Novi Sad | 2021/07/25 07:00 | Stevan Popovic v Taiyo Yamanaka | 6-3,4-6,10-7 |
| ITF M25 Kottingbrunn | 2021/07/21 12:05 | Taiyo Yamanaka v Sandro Kopp | 1-6,2-6 |
| ITF M15 Gdynia | 2021/08/08 08:30 | Dawid Taczala v Filip Pieczonka | 6-7,0-6 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/05 07:00 | Illya Beloborodko v Dawid Taczala | 6-1,6-2 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 16:00 | Piotr Matuszewski v Dawid Taczala | 1-6,6-4,7-10 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 12:30 | Alexander Wolfschmidt v Dawid Taczala | 0-6,5-7 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/01 13:25 | Dawid Taczala v Nikolas Lahky | 6-2,6-2 |
| ITF M25 Poznan | 2020/08/23 09:30 | Dawid Taczala v Adrian Oetzbach | 3-6,2-6 |