Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2021/05/05 08:25 | Guido Ivan Justo v Saito, Takashi | 1-6,1-6 |
| ITF - M15 Monastir | 2021/05/04 08:00 | Saito, Takashi v Marcello Serafini | 7-5,2-6,10-8 |
| ITF - M15 Monastir | 2021/05/03 12:00 | Saito, Takashi v Francesco Cano | 6-0,6-3 |
| ITF - M15 Sharm El Sheikh | 2021/03/01 07:30 | Saito, Takashi v Manuel Mazza | 4-6,3-6 |
| ITF - M15 Sharm El Sheikh | 2021/02/24 07:30 | Saito, Takashi v Yu Hsiou Hsu | 1-6,1-6 |
| ITF - M15 Sharm El Sheikh | 2021/02/23 09:20 | Saito, Takashi v Andres Gabriel Ciurletti | 7-5,6-1 |
| ITF - M15 Sharm El Sheikh | 2021/02/21 15:30 | Saito, Takashi v Troche, Emiliano | 6-1,6-1 |
| ITF - M15 Sharm El Sheikh | 2021/02/16 07:30 | Crepaldi, Erik v Saito, Takashi | 6-4,4-6,10-4 |
| ITF - M15 Monastir | 2021/05/04 09:00 | Alexander Donski v Shintaro Imai | 7-5,6-4 |
| ITF - M15 Monastir | 2021/04/28 08:25 | Alexander Donski v Jonathan Mridha | 5-7,7-6,6-7 |
| ITF - M15 Monastir | 2021/04/22 08:30 | Giacalone, Omar v Alexander Donski | 3-6,6-2,6-3 |
| ITF - M15 Monastir | 2021/04/21 08:30 | Soares Klier, Gilbert v Alexander Donski | 4-6,6-4,3-6 |
| ITF - M15 Monastir | 2021/03/30 10:30 | Alexander Donski v Soares Klier, Gilbert | 6-7,3-6 |
| ITF - M15 Monastir | 2021/03/24 10:05 | Alexander Donski v Buvaysar Gadamauri | 6-7,5-7 |
| ITF - M15 Monastir | 2021/03/18 11:30 | Alexander Donski v Christian Langmo | 2-6,4-6 |
| ITF - M15 Monastir | 2021/03/17 10:10 | Dougaz, Aziz v Alexander Donski | 5-7,3-6 |