Stadium: Court 6 Round: 62 Ground: Clay
| ITF M25 Telfs | 2021/07/12 13:30 | Taiyo Yamanaka v Erwin Troebinger | 6-4,6-1 |
| ITF M25 Velenje | 2021/07/06 08:00 | Alessandro Bellifemine v Taiyo Yamanaka | 6-3,6-2 |
| ITF M25 Velenje | 2021/07/05 14:35 | Pietro R Scomparin v Taiyo Yamanaka | 2-6,6-1,7-10 |
| ITF M25 Wroclaw | 2021/06/28 09:40 | Taiyo Yamanaka v Petr Michnev | 5-7,2-6 |
| ITF M25 Wroclaw | 2021/06/27 12:30 | Juliusz Bienkiewicz v Taiyo Yamanaka | 3-6,1-6 |
| ITF M15 Skopje | 2021/06/08 09:00 | Max Houkes v Taiyo Yamanaka | 6-4,6-3 |
| ITF M15 Skopje | 2021/06/07 11:30 | Fons Van Sambeek v Taiyo Yamanaka | 6-2,2-6,6-10 |
| ITF M15 Skopje | 2021/06/06 13:30 | Dmitrii Vasilev v Taiyo Yamanaka | 3-6,6-7 |
| ITF M25 Telfs | 2021/07/12 13:55 | Martin Benes v George Botezan | 7-6,3-6,5-10 |
| ITF M25 Beograd | 2021/06/30 08:40 | Edoardo Lavagno v George Botezan | 6-2,4-6,6-1 |
| ITF M25 Beograd | 2021/06/29 09:00 | George Botezan v Nikola Slavic | 4-6,2-6 |
| ITF M25 Beograd | 2021/06/28 07:00 | George Botezan v Tadija Radovanovic | 7-6,6-2 |
| ITF M25 Beograd | 2021/06/27 07:00 | Denis Klok v George Botezan | 3-6,1-6 |
| UTR Pro Tennis Series - Bukarest | 2021/06/03 07:30 | George Botezan v Oscar Jose Gutierrez | 0-6,3-6 |
| UTR Pro Tennis Series - Bukarest | 2021/06/02 14:30 | George Botezan v Ioan Alexandru Chirita | 1-6,2-6 |
| ITF M15 București | 2021/05/25 07:00 | George Botezan v Vlad Andrei Dancu | 7-6,0-6,4-10 |