Stadium: Court 4 Round: 44 Ground: Clay
| ITF M15 Lodz | 2021/08/16 13:15 | Taiyo Yamanaka v Admir Kalender | 3-6,7-6,10-7 |
| ITF M15 Lodz | 2021/08/16 09:30 | Taiyo Yamanaka v Dawid Taczala | 6-4,6-3 |
| 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 M25 Prostejov | 2021/08/17 11:40 | Lucas Miedler v Dominique Graf | 6-4,6-2 |
| ITF M25 Prostejov | 2021/08/16 08:00 | Dominique Graf v Jakub Kroslak | 6-2,6-4 |
| ITF M25 Prostejov | 2021/08/15 10:00 | Dominique Graf v Roman Postolka | 6-3,5-7,10-7 |
| ITF M25 Bolzano | 2021/08/03 12:15 | Riccardo Balzerani v Dominique Graf | 6-3,6-4 |
| ITF M25 Bolzano | 2021/08/02 14:25 | Horst Rieder v Dominique Graf | 6-7,3-6 |
| ITF M25 Bolzano | 2021/08/01 07:25 | Tobias Kirchlechner v Dominique Graf | 1-6,1-6 |
| ITF M25 Kottingbrunn | 2021/07/18 07:30 | Dominique Graf v Lukas Palovic | 1-6,4-6 |
| ITF M15 Antalya | 2021/06/20 07:00 | Dominique Graf v Andrea Picchione | 5-7,7-5,4-10 |